Home / 67,939.47-102,045.02-40,975.71

Finding the Fourth Proportional to 67,939.47, 102,045.02 and 40,975.71

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Solution

The fourth proportional to 67,939.47, 102,045.02 and 40,975.71 is: 61,545.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.47 : 102,045.02 = 40,975.71 : x
  2. Step 2: Convert to fraction form
    67,939.47/102,045.02 = 40,975.71/x
  3. Step 3: Cross multiply
    67,939.47x = 102,045.02 × 40,975.71
  4. Step 4: Simplify right side
    67,939.47x = 4,181,367,146.46
  5. Step 5: Solve for x
    x = 4,181,367,146.46/67,939.47
  6. Step 6: Final answer
    x = 61,545.48

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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.