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Finding the Fourth Proportional to 65,995.62, 98,991.78 and 19,248.90

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Solution

The fourth proportional to 65,995.62, 98,991.78 and 19,248.90 is: 28,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,995.62 : 98,991.78 = 19,248.90 : x
  2. Step 2: Convert to fraction form
    65,995.62/98,991.78 = 19,248.90/x
  3. Step 3: Cross multiply
    65,995.62x = 98,991.78 × 19,248.90
  4. Step 4: Simplify right side
    65,995.62x = 1,905,482,874.04
  5. Step 5: Solve for x
    x = 1,905,482,874.04/65,995.62
  6. Step 6: Final answer
    x = 28,872.87

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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.