Home / 72,177.12-108,166.72-40,602.56

Finding the Fourth Proportional to 72,177.12, 108,166.72 and 40,602.56

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Solution

The fourth proportional to 72,177.12, 108,166.72 and 40,602.56 is: 60,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,177.12 : 108,166.72 = 40,602.56 : x
  2. Step 2: Convert to fraction form
    72,177.12/108,166.72 = 40,602.56/x
  3. Step 3: Cross multiply
    72,177.12x = 108,166.72 × 40,602.56
  4. Step 4: Simplify right side
    72,177.12x = 4,391,845,738.80
  5. Step 5: Solve for x
    x = 4,391,845,738.80/72,177.12
  6. Step 6: Final answer
    x = 60,848.17

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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.