Home / 91,929.59-126,752.46-66,395.15

Finding the Fourth Proportional to 91,929.59, 126,752.46 and 66,395.15

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Solution

The fourth proportional to 91,929.59, 126,752.46 and 66,395.15 is: 91,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,929.59 : 126,752.46 = 66,395.15 : x
  2. Step 2: Convert to fraction form
    91,929.59/126,752.46 = 66,395.15/x
  3. Step 3: Cross multiply
    91,929.59x = 126,752.46 × 66,395.15
  4. Step 4: Simplify right side
    91,929.59x = 8,415,748,594.57
  5. Step 5: Solve for x
    x = 8,415,748,594.57/91,929.59
  6. Step 6: Final answer
    x = 91,545.59

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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.