Home / 71,789.76-99,072-39,526.02

Finding the Fourth Proportional to 71,789.76, 99,072 and 39,526.02

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Solution

The fourth proportional to 71,789.76, 99,072 and 39,526.02 is: 54,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,789.76 : 99,072 = 39,526.02 : x
  2. Step 2: Convert to fraction form
    71,789.76/99,072 = 39,526.02/x
  3. Step 3: Cross multiply
    71,789.76x = 99,072 × 39,526.02
  4. Step 4: Simplify right side
    71,789.76x = 3,915,921,853.44
  5. Step 5: Solve for x
    x = 3,915,921,853.44/71,789.76
  6. Step 6: Final answer
    x = 54,547.08

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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.