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Finding the Fourth Proportional to 65,266.60, 97,899.90 and 40,225.45

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Solution

The fourth proportional to 65,266.60, 97,899.90 and 40,225.45 is: 60,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,266.60 : 97,899.90 = 40,225.45 : x
  2. Step 2: Convert to fraction form
    65,266.60/97,899.90 = 40,225.45/x
  3. Step 3: Cross multiply
    65,266.60x = 97,899.90 × 40,225.45
  4. Step 4: Simplify right side
    65,266.60x = 3,938,067,532.46
  5. Step 5: Solve for x
    x = 3,938,067,532.46/65,266.60
  6. Step 6: Final answer
    x = 60,338.18

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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.