Home / 71,943.12-99,255.47-41,711.79

Finding the Fourth Proportional to 71,943.12, 99,255.47 and 41,711.79

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Solution

The fourth proportional to 71,943.12, 99,255.47 and 41,711.79 is: 57,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,943.12 : 99,255.47 = 41,711.79 : x
  2. Step 2: Convert to fraction form
    71,943.12/99,255.47 = 41,711.79/x
  3. Step 3: Cross multiply
    71,943.12x = 99,255.47 × 41,711.79
  4. Step 4: Simplify right side
    71,943.12x = 4,140,123,320.99
  5. Step 5: Solve for x
    x = 4,140,123,320.99/71,943.12
  6. Step 6: Final answer
    x = 57,547.18

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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.