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Finding the Fourth Proportional to 72,297.59, 108,465.08 and 42,337.13

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Solution

The fourth proportional to 72,297.59, 108,465.08 and 42,337.13 is: 63,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,297.59 : 108,465.08 = 42,337.13 : x
  2. Step 2: Convert to fraction form
    72,297.59/108,465.08 = 42,337.13/x
  3. Step 3: Cross multiply
    72,297.59x = 108,465.08 × 42,337.13
  4. Step 4: Simplify right side
    72,297.59x = 4,592,099,438.41
  5. Step 5: Solve for x
    x = 4,592,099,438.41/72,297.59
  6. Step 6: Final answer
    x = 63,516.64

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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.