Home / 84,720.83-127,082.16-25,557.01

Finding the Fourth Proportional to 84,720.83, 127,082.16 and 25,557.01

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Solution

The fourth proportional to 84,720.83, 127,082.16 and 25,557.01 is: 38,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.83 : 127,082.16 = 25,557.01 : x
  2. Step 2: Convert to fraction form
    84,720.83/127,082.16 = 25,557.01/x
  3. Step 3: Cross multiply
    84,720.83x = 127,082.16 × 25,557.01
  4. Step 4: Simplify right side
    84,720.83x = 3,247,840,001.78
  5. Step 5: Solve for x
    x = 3,247,840,001.78/84,720.83
  6. Step 6: Final answer
    x = 38,335.79

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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.