Home / 71,923.28-99,252.08-40,091.50

Finding the Fourth Proportional to 71,923.28, 99,252.08 and 40,091.50

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Solution

The fourth proportional to 71,923.28, 99,252.08 and 40,091.50 is: 55,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,923.28 : 99,252.08 = 40,091.50 : x
  2. Step 2: Convert to fraction form
    71,923.28/99,252.08 = 40,091.50/x
  3. Step 3: Cross multiply
    71,923.28x = 99,252.08 × 40,091.50
  4. Step 4: Simplify right side
    71,923.28x = 3,979,164,765.32
  5. Step 5: Solve for x
    x = 3,979,164,765.32/71,923.28
  6. Step 6: Final answer
    x = 55,325.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.