Home / 91,358.70-126,068.04-55,543.74

Finding the Fourth Proportional to 91,358.70, 126,068.04 and 55,543.74

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Solution

The fourth proportional to 91,358.70, 126,068.04 and 55,543.74 is: 76,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,358.70 : 126,068.04 = 55,543.74 : x
  2. Step 2: Convert to fraction form
    91,358.70/126,068.04 = 55,543.74/x
  3. Step 3: Cross multiply
    91,358.70x = 126,068.04 × 55,543.74
  4. Step 4: Simplify right side
    91,358.70x = 7,002,290,436.07
  5. Step 5: Solve for x
    x = 7,002,290,436.07/91,358.70
  6. Step 6: Final answer
    x = 76,646.13

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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.