Home / 82,487.48-123,675.64-38,089.76

Finding the Fourth Proportional to 82,487.48, 123,675.64 and 38,089.76

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Solution

The fourth proportional to 82,487.48, 123,675.64 and 38,089.76 is: 57,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,487.48 : 123,675.64 = 38,089.76 : x
  2. Step 2: Convert to fraction form
    82,487.48/123,675.64 = 38,089.76/x
  3. Step 3: Cross multiply
    82,487.48x = 123,675.64 × 38,089.76
  4. Step 4: Simplify right side
    82,487.48x = 4,710,775,445.45
  5. Step 5: Solve for x
    x = 4,710,775,445.45/82,487.48
  6. Step 6: Final answer
    x = 57,108.98

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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.