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Finding the Fourth Proportional to 86,892.84, 130,337.88 and 27,728.16

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Solution

The fourth proportional to 86,892.84, 130,337.88 and 27,728.16 is: 41,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.84 : 130,337.88 = 27,728.16 : x
  2. Step 2: Convert to fraction form
    86,892.84/130,337.88 = 27,728.16/x
  3. Step 3: Cross multiply
    86,892.84x = 130,337.88 × 27,728.16
  4. Step 4: Simplify right side
    86,892.84x = 3,614,029,590.70
  5. Step 5: Solve for x
    x = 3,614,029,590.70/86,892.84
  6. Step 6: Final answer
    x = 41,591.80

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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.