Home / 60,585.90-90,872.38-21,143.76

Finding the Fourth Proportional to 60,585.90, 90,872.38 and 21,143.76

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Solution

The fourth proportional to 60,585.90, 90,872.38 and 21,143.76 is: 31,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,585.90 : 90,872.38 = 21,143.76 : x
  2. Step 2: Convert to fraction form
    60,585.90/90,872.38 = 21,143.76/x
  3. Step 3: Cross multiply
    60,585.90x = 90,872.38 × 21,143.76
  4. Step 4: Simplify right side
    60,585.90x = 1,921,383,793.35
  5. Step 5: Solve for x
    x = 1,921,383,793.35/60,585.90
  6. Step 6: Final answer
    x = 31,713.38

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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.