Home / 72,433.64-108,681.68-39,177.12

Finding the Fourth Proportional to 72,433.64, 108,681.68 and 39,177.12

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Solution

The fourth proportional to 72,433.64, 108,681.68 and 39,177.12 is: 58,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.64 : 108,681.68 = 39,177.12 : x
  2. Step 2: Convert to fraction form
    72,433.64/108,681.68 = 39,177.12/x
  3. Step 3: Cross multiply
    72,433.64x = 108,681.68 × 39,177.12
  4. Step 4: Simplify right side
    72,433.64x = 4,257,835,023.28
  5. Step 5: Solve for x
    x = 4,257,835,023.28/72,433.64
  6. Step 6: Final answer
    x = 58,782.56

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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.