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Finding the Fourth Proportional to 72,331.56, 100,008.02 and 63,353.30

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Solution

The fourth proportional to 72,331.56, 100,008.02 and 63,353.30 is: 87,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,331.56 : 100,008.02 = 63,353.30 : x
  2. Step 2: Convert to fraction form
    72,331.56/100,008.02 = 63,353.30/x
  3. Step 3: Cross multiply
    72,331.56x = 100,008.02 × 63,353.30
  4. Step 4: Simplify right side
    72,331.56x = 6,335,838,047.65
  5. Step 5: Solve for x
    x = 6,335,838,047.65/72,331.56
  6. Step 6: Final answer
    x = 87,594.38

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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.