Home / 85,132.18-127,705.61-21,951.74

Finding the Fourth Proportional to 85,132.18, 127,705.61 and 21,951.74

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Solution

The fourth proportional to 85,132.18, 127,705.61 and 21,951.74 is: 32,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,132.18 : 127,705.61 = 21,951.74 : x
  2. Step 2: Convert to fraction form
    85,132.18/127,705.61 = 21,951.74/x
  3. Step 3: Cross multiply
    85,132.18x = 127,705.61 × 21,951.74
  4. Step 4: Simplify right side
    85,132.18x = 2,803,360,721.40
  5. Step 5: Solve for x
    x = 2,803,360,721.40/85,132.18
  6. Step 6: Final answer
    x = 32,929.51

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1.5x scale

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.