Home / 85,073.31-127,678.01-38,329.83

Finding the Fourth Proportional to 85,073.31, 127,678.01 and 38,329.83

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Solution

The fourth proportional to 85,073.31, 127,678.01 and 38,329.83 is: 57,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,073.31 : 127,678.01 = 38,329.83 : x
  2. Step 2: Convert to fraction form
    85,073.31/127,678.01 = 38,329.83/x
  3. Step 3: Cross multiply
    85,073.31x = 127,678.01 × 38,329.83
  4. Step 4: Simplify right side
    85,073.31x = 4,893,876,226.39
  5. Step 5: Solve for x
    x = 4,893,876,226.39/85,073.31
  6. Step 6: Final answer
    x = 57,525.40

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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.