Home / 74,862.38-103,310.24-40,870.87

Finding the Fourth Proportional to 74,862.38, 103,310.24 and 40,870.87

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Solution

The fourth proportional to 74,862.38, 103,310.24 and 40,870.87 is: 56,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.38 : 103,310.24 = 40,870.87 : x
  2. Step 2: Convert to fraction form
    74,862.38/103,310.24 = 40,870.87/x
  3. Step 3: Cross multiply
    74,862.38x = 103,310.24 × 40,870.87
  4. Step 4: Simplify right side
    74,862.38x = 4,222,379,434.56
  5. Step 5: Solve for x
    x = 4,222,379,434.56/74,862.38
  6. Step 6: Final answer
    x = 56,401.89

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1.5x scale

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.