Home / 42,148.57-63,254.03-19,961.98

Finding the Fourth Proportional to 42,148.57, 63,254.03 and 19,961.98

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Solution

The fourth proportional to 42,148.57, 63,254.03 and 19,961.98 is: 29,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,148.57 : 63,254.03 = 19,961.98 : x
  2. Step 2: Convert to fraction form
    42,148.57/63,254.03 = 19,961.98/x
  3. Step 3: Cross multiply
    42,148.57x = 63,254.03 × 19,961.98
  4. Step 4: Simplify right side
    42,148.57x = 1,262,675,681.78
  5. Step 5: Solve for x
    x = 1,262,675,681.78/42,148.57
  6. Step 6: Final answer
    x = 29,957.74

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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.