Home / 61,815.92-92,731.10-19,681.25

Finding the Fourth Proportional to 61,815.92, 92,731.10 and 19,681.25

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Solution

The fourth proportional to 61,815.92, 92,731.10 and 19,681.25 is: 29,524.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,815.92 : 92,731.10 = 19,681.25 : x
  2. Step 2: Convert to fraction form
    61,815.92/92,731.10 = 19,681.25/x
  3. Step 3: Cross multiply
    61,815.92x = 92,731.10 × 19,681.25
  4. Step 4: Simplify right side
    61,815.92x = 1,825,063,399.81
  5. Step 5: Solve for x
    x = 1,825,063,399.81/61,815.92
  6. Step 6: Final answer
    x = 29,524.17

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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.