Home / 66,319.97-99,330.50-38,173.28

Finding the Fourth Proportional to 66,319.97, 99,330.50 and 38,173.28

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Solution

The fourth proportional to 66,319.97, 99,330.50 and 38,173.28 is: 57,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,319.97 : 99,330.50 = 38,173.28 : x
  2. Step 2: Convert to fraction form
    66,319.97/99,330.50 = 38,173.28/x
  3. Step 3: Cross multiply
    66,319.97x = 99,330.50 × 38,173.28
  4. Step 4: Simplify right side
    66,319.97x = 3,791,770,587.82
  5. Step 5: Solve for x
    x = 3,791,770,587.82/66,319.97
  6. Step 6: Final answer
    x = 57,173.89

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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.