Home / 42,961.29-64,437.15-13,376.64

Finding the Fourth Proportional to 42,961.29, 64,437.15 and 13,376.64

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Solution

The fourth proportional to 42,961.29, 64,437.15 and 13,376.64 is: 20,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,961.29 : 64,437.15 = 13,376.64 : x
  2. Step 2: Convert to fraction form
    42,961.29/64,437.15 = 13,376.64/x
  3. Step 3: Cross multiply
    42,961.29x = 64,437.15 × 13,376.64
  4. Step 4: Simplify right side
    42,961.29x = 861,952,849.98
  5. Step 5: Solve for x
    x = 861,952,849.98/42,961.29
  6. Step 6: Final answer
    x = 20,063.48

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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.