Home / 71,876.94-99,187.29-40,045.02

Finding the Fourth Proportional to 71,876.94, 99,187.29 and 40,045.02

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Solution

The fourth proportional to 71,876.94, 99,187.29 and 40,045.02 is: 55,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,876.94 : 99,187.29 = 40,045.02 : x
  2. Step 2: Convert to fraction form
    71,876.94/99,187.29 = 40,045.02/x
  3. Step 3: Cross multiply
    71,876.94x = 99,187.29 × 40,045.02
  4. Step 4: Simplify right side
    71,876.94x = 3,971,957,011.80
  5. Step 5: Solve for x
    x = 3,971,957,011.80/71,876.94
  6. Step 6: Final answer
    x = 55,260.52

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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.