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Finding the Fourth Proportional to 65,148.96, 97,737.52 and 20,170.24

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Solution

The fourth proportional to 65,148.96, 97,737.52 and 20,170.24 is: 30,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,148.96 : 97,737.52 = 20,170.24 : x
  2. Step 2: Convert to fraction form
    65,148.96/97,737.52 = 20,170.24/x
  3. Step 3: Cross multiply
    65,148.96x = 97,737.52 × 20,170.24
  4. Step 4: Simplify right side
    65,148.96x = 1,971,389,235.40
  5. Step 5: Solve for x
    x = 1,971,389,235.40/65,148.96
  6. Step 6: Final answer
    x = 30,259.72

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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.