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Finding the Fourth Proportional to 65,539.40, 98,114.70 and 43,377.80

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Solution

The fourth proportional to 65,539.40, 98,114.70 and 43,377.80 is: 64,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,539.40 : 98,114.70 = 43,377.80 : x
  2. Step 2: Convert to fraction form
    65,539.40/98,114.70 = 43,377.80/x
  3. Step 3: Cross multiply
    65,539.40x = 98,114.70 × 43,377.80
  4. Step 4: Simplify right side
    65,539.40x = 4,255,999,833.66
  5. Step 5: Solve for x
    x = 4,255,999,833.66/65,539.40
  6. Step 6: Final answer
    x = 64,938.03

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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.