Home / 91,685,057.04-126,706,839.60-75,139,089.84

Finding the Fourth Proportional to 91,685,057.04, 126,706,839.60 and 75,139,089.84

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Solution

The fourth proportional to 91,685,057.04, 126,706,839.60 and 75,139,089.84 is: 103,840,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,685,057.04 : 126,706,839.60 = 75,139,089.84 : x
  2. Step 2: Convert to fraction form
    91,685,057.04/126,706,839.60 = 75,139,089.84/x
  3. Step 3: Cross multiply
    91,685,057.04x = 126,706,839.60 × 75,139,089.84
  4. Step 4: Simplify right side
    91,685,057.04x = 9,520,636,604,046,870
  5. Step 5: Solve for x
    x = 9,520,636,604,046,870/91,685,057.04
  6. Step 6: Final answer
    x = 103,840,657.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.