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Finding the Fourth Proportional to 65,225.80, 97,838.70 and 38,960.20

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Solution

The fourth proportional to 65,225.80, 97,838.70 and 38,960.20 is: 58,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,225.80 : 97,838.70 = 38,960.20 : x
  2. Step 2: Convert to fraction form
    65,225.80/97,838.70 = 38,960.20/x
  3. Step 3: Cross multiply
    65,225.80x = 97,838.70 × 38,960.20
  4. Step 4: Simplify right side
    65,225.80x = 3,811,815,319.74
  5. Step 5: Solve for x
    x = 3,811,815,319.74/65,225.80
  6. Step 6: Final answer
    x = 58,440.30

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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.