Home / 91,319.85-126,012.15-62,664.12

Finding the Fourth Proportional to 91,319.85, 126,012.15 and 62,664.12

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Solution

The fourth proportional to 91,319.85, 126,012.15 and 62,664.12 is: 86,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,319.85 : 126,012.15 = 62,664.12 : x
  2. Step 2: Convert to fraction form
    91,319.85/126,012.15 = 62,664.12/x
  3. Step 3: Cross multiply
    91,319.85x = 126,012.15 × 62,664.12
  4. Step 4: Simplify right side
    91,319.85x = 7,896,440,489.06
  5. Step 5: Solve for x
    x = 7,896,440,489.06/91,319.85
  6. Step 6: Final answer
    x = 86,470.14

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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.