Home / 74,575.27-111,731.68-66,439.63

Finding the Fourth Proportional to 74,575.27, 111,731.68 and 66,439.63

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Solution

The fourth proportional to 74,575.27, 111,731.68 and 66,439.63 is: 99,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,575.27 : 111,731.68 = 66,439.63 : x
  2. Step 2: Convert to fraction form
    74,575.27/111,731.68 = 66,439.63/x
  3. Step 3: Cross multiply
    74,575.27x = 111,731.68 × 66,439.63
  4. Step 4: Simplify right side
    74,575.27x = 7,423,411,478.48
  5. Step 5: Solve for x
    x = 7,423,411,478.48/74,575.27
  6. Step 6: Final answer
    x = 99,542.54

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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.