Home / 91,607.28-126,416.88-51,320.31

Finding the Fourth Proportional to 91,607.28, 126,416.88 and 51,320.31

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Solution

The fourth proportional to 91,607.28, 126,416.88 and 51,320.31 is: 70,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,607.28 : 126,416.88 = 51,320.31 : x
  2. Step 2: Convert to fraction form
    91,607.28/126,416.88 = 51,320.31/x
  3. Step 3: Cross multiply
    91,607.28x = 126,416.88 × 51,320.31
  4. Step 4: Simplify right side
    91,607.28x = 6,487,753,470.83
  5. Step 5: Solve for x
    x = 6,487,753,470.83/91,607.28
  6. Step 6: Final answer
    x = 70,821.37

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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.