Home / 86,402.30-119,179.53-57,330.03

Finding the Fourth Proportional to 86,402.30, 119,179.53 and 57,330.03

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Solution

The fourth proportional to 86,402.30, 119,179.53 and 57,330.03 is: 79,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,402.30 : 119,179.53 = 57,330.03 : x
  2. Step 2: Convert to fraction form
    86,402.30/119,179.53 = 57,330.03/x
  3. Step 3: Cross multiply
    86,402.30x = 119,179.53 × 57,330.03
  4. Step 4: Simplify right side
    86,402.30x = 6,832,565,645.58
  5. Step 5: Solve for x
    x = 6,832,565,645.58/86,402.30
  6. Step 6: Final answer
    x = 79,078.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.