Home / 42,767.31-64,154.55-15,757

Finding the Fourth Proportional to 42,767.31, 64,154.55 and 15,757

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Solution

The fourth proportional to 42,767.31, 64,154.55 and 15,757 is: 23,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,767.31 : 64,154.55 = 15,757 : x
  2. Step 2: Convert to fraction form
    42,767.31/64,154.55 = 15,757/x
  3. Step 3: Cross multiply
    42,767.31x = 64,154.55 × 15,757
  4. Step 4: Simplify right side
    42,767.31x = 1,010,883,204.96
  5. Step 5: Solve for x
    x = 1,010,883,204.96/42,767.31
  6. Step 6: Final answer
    x = 23,636.82

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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.