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Finding the Fourth Proportional to 67,475.20, 101,212.80 and 62,406.40

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Solution

The fourth proportional to 67,475.20, 101,212.80 and 62,406.40 is: 93,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,475.20 : 101,212.80 = 62,406.40 : x
  2. Step 2: Convert to fraction form
    67,475.20/101,212.80 = 62,406.40/x
  3. Step 3: Cross multiply
    67,475.20x = 101,212.80 × 62,406.40
  4. Step 4: Simplify right side
    67,475.20x = 6,316,326,481.92
  5. Step 5: Solve for x
    x = 6,316,326,481.92/67,475.20
  6. Step 6: Final answer
    x = 93,609.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.