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Finding the Fourth Proportional to 83,060.76, 124,590.50 and 20,730.84

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Solution

The fourth proportional to 83,060.76, 124,590.50 and 20,730.84 is: 31,096.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,060.76 : 124,590.50 = 20,730.84 : x
  2. Step 2: Convert to fraction form
    83,060.76/124,590.50 = 20,730.84/x
  3. Step 3: Cross multiply
    83,060.76x = 124,590.50 × 20,730.84
  4. Step 4: Simplify right side
    83,060.76x = 2,582,865,721.02
  5. Step 5: Solve for x
    x = 2,582,865,721.02/83,060.76
  6. Step 6: Final answer
    x = 31,096.10

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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.