Home / 74,938.47-111,861.01-65,479.88

Finding the Fourth Proportional to 74,938.47, 111,861.01 and 65,479.88

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Solution

The fourth proportional to 74,938.47, 111,861.01 and 65,479.88 is: 97,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,938.47 : 111,861.01 = 65,479.88 : x
  2. Step 2: Convert to fraction form
    74,938.47/111,861.01 = 65,479.88/x
  3. Step 3: Cross multiply
    74,938.47x = 111,861.01 × 65,479.88
  4. Step 4: Simplify right side
    74,938.47x = 7,324,644,788.47
  5. Step 5: Solve for x
    x = 7,324,644,788.47/74,938.47
  6. Step 6: Final answer
    x = 97,742.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.