Home / 86,327.20-129,465.28-38,914.93

Finding the Fourth Proportional to 86,327.20, 129,465.28 and 38,914.93

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Solution

The fourth proportional to 86,327.20, 129,465.28 and 38,914.93 is: 58,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,327.20 : 129,465.28 = 38,914.93 : x
  2. Step 2: Convert to fraction form
    86,327.20/129,465.28 = 38,914.93/x
  3. Step 3: Cross multiply
    86,327.20x = 129,465.28 × 38,914.93
  4. Step 4: Simplify right side
    86,327.20x = 5,038,132,308.63
  5. Step 5: Solve for x
    x = 5,038,132,308.63/86,327.20
  6. Step 6: Final answer
    x = 58,360.89

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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.