Home / 85,372.57-127,955.17-60,419.91

Finding the Fourth Proportional to 85,372.57, 127,955.17 and 60,419.91

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Solution

The fourth proportional to 85,372.57, 127,955.17 and 60,419.91 is: 90,556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,372.57 : 127,955.17 = 60,419.91 : x
  2. Step 2: Convert to fraction form
    85,372.57/127,955.17 = 60,419.91/x
  3. Step 3: Cross multiply
    85,372.57x = 127,955.17 × 60,419.91
  4. Step 4: Simplify right side
    85,372.57x = 7,731,039,855.43
  5. Step 5: Solve for x
    x = 7,731,039,855.43/85,372.57
  6. Step 6: Final answer
    x = 90,556.49

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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.