Home / 91,459.14-126,198.45-53,740.68

Finding the Fourth Proportional to 91,459.14, 126,198.45 and 53,740.68

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Solution

The fourth proportional to 91,459.14, 126,198.45 and 53,740.68 is: 74,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,459.14 : 126,198.45 = 53,740.68 : x
  2. Step 2: Convert to fraction form
    91,459.14/126,198.45 = 53,740.68/x
  3. Step 3: Cross multiply
    91,459.14x = 126,198.45 × 53,740.68
  4. Step 4: Simplify right side
    91,459.14x = 6,781,990,517.95
  5. Step 5: Solve for x
    x = 6,781,990,517.95/91,459.14
  6. Step 6: Final answer
    x = 74,153.23

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1.5x scale

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.