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Finding the Fourth Proportional to 65,445.80, 98,168.70 and 60,634.40

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Solution

The fourth proportional to 65,445.80, 98,168.70 and 60,634.40 is: 90,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,445.80 : 98,168.70 = 60,634.40 : x
  2. Step 2: Convert to fraction form
    65,445.80/98,168.70 = 60,634.40/x
  3. Step 3: Cross multiply
    65,445.80x = 98,168.70 × 60,634.40
  4. Step 4: Simplify right side
    65,445.80x = 5,952,400,223.28
  5. Step 5: Solve for x
    x = 5,952,400,223.28/65,445.80
  6. Step 6: Final answer
    x = 90,951.60

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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.