Home / 74,050.38-102,189.22-40,058.78

Finding the Fourth Proportional to 74,050.38, 102,189.22 and 40,058.78

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Solution

The fourth proportional to 74,050.38, 102,189.22 and 40,058.78 is: 55,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,050.38 : 102,189.22 = 40,058.78 : x
  2. Step 2: Convert to fraction form
    74,050.38/102,189.22 = 40,058.78/x
  3. Step 3: Cross multiply
    74,050.38x = 102,189.22 × 40,058.78
  4. Step 4: Simplify right side
    74,050.38x = 4,093,575,754.17
  5. Step 5: Solve for x
    x = 4,093,575,754.17/74,050.38
  6. Step 6: Final answer
    x = 55,280.95

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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.