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Finding the Fourth Proportional to 65,877.60, 98,816.40 and 36,280.20

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Solution

The fourth proportional to 65,877.60, 98,816.40 and 36,280.20 is: 54,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,877.60 : 98,816.40 = 36,280.20 : x
  2. Step 2: Convert to fraction form
    65,877.60/98,816.40 = 36,280.20/x
  3. Step 3: Cross multiply
    65,877.60x = 98,816.40 × 36,280.20
  4. Step 4: Simplify right side
    65,877.60x = 3,585,078,755.28
  5. Step 5: Solve for x
    x = 3,585,078,755.28/65,877.60
  6. Step 6: Final answer
    x = 54,420.30

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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.