Home / 65,372.16-98,052.84-20,987.04

Finding the Fourth Proportional to 65,372.16, 98,052.84 and 20,987.04

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Solution

The fourth proportional to 65,372.16, 98,052.84 and 20,987.04 is: 31,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,372.16 : 98,052.84 = 20,987.04 : x
  2. Step 2: Convert to fraction form
    65,372.16/98,052.84 = 20,987.04/x
  3. Step 3: Cross multiply
    65,372.16x = 98,052.84 × 20,987.04
  4. Step 4: Simplify right side
    65,372.16x = 2,057,838,875.19
  5. Step 5: Solve for x
    x = 2,057,838,875.19/65,372.16
  6. Step 6: Final answer
    x = 31,478.83

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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.