Home / 90,726.54-136,042.95-40,763.94

Finding the Fourth Proportional to 90,726.54, 136,042.95 and 40,763.94

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Solution

The fourth proportional to 90,726.54, 136,042.95 and 40,763.94 is: 61,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.54 : 136,042.95 = 40,763.94 : x
  2. Step 2: Convert to fraction form
    90,726.54/136,042.95 = 40,763.94/x
  3. Step 3: Cross multiply
    90,726.54x = 136,042.95 × 40,763.94
  4. Step 4: Simplify right side
    90,726.54x = 5,545,646,651.22
  5. Step 5: Solve for x
    x = 5,545,646,651.22/90,726.54
  6. Step 6: Final answer
    x = 61,124.86

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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.