Home / 84,931.30-127,528.17-45,565.30

Finding the Fourth Proportional to 84,931.30, 127,528.17 and 45,565.30

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Solution

The fourth proportional to 84,931.30, 127,528.17 and 45,565.30 is: 68,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,931.30 : 127,528.17 = 45,565.30 : x
  2. Step 2: Convert to fraction form
    84,931.30/127,528.17 = 45,565.30/x
  3. Step 3: Cross multiply
    84,931.30x = 127,528.17 × 45,565.30
  4. Step 4: Simplify right side
    84,931.30x = 5,810,859,324.50
  5. Step 5: Solve for x
    x = 5,810,859,324.50/84,931.30
  6. Step 6: Final answer
    x = 68,418.35

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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.