Home / 42,791.40-64,188-14,711.16

Finding the Fourth Proportional to 42,791.40, 64,188 and 14,711.16

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Solution

The fourth proportional to 42,791.40, 64,188 and 14,711.16 is: 22,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,791.40 : 64,188 = 14,711.16 : x
  2. Step 2: Convert to fraction form
    42,791.40/64,188 = 14,711.16/x
  3. Step 3: Cross multiply
    42,791.40x = 64,188 × 14,711.16
  4. Step 4: Simplify right side
    42,791.40x = 944,279,938.08
  5. Step 5: Solve for x
    x = 944,279,938.08/42,791.40
  6. Step 6: Final answer
    x = 22,067.05

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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.