Home / 42,781.12-64,156.32-16,472.64

Finding the Fourth Proportional to 42,781.12, 64,156.32 and 16,472.64

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Solution

The fourth proportional to 42,781.12, 64,156.32 and 16,472.64 is: 24,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,781.12 : 64,156.32 = 16,472.64 : x
  2. Step 2: Convert to fraction form
    42,781.12/64,156.32 = 16,472.64/x
  3. Step 3: Cross multiply
    42,781.12x = 64,156.32 × 16,472.64
  4. Step 4: Simplify right side
    42,781.12x = 1,056,823,963.08
  5. Step 5: Solve for x
    x = 1,056,823,963.08/42,781.12
  6. Step 6: Final answer
    x = 24,703.05

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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.