Home / 81,158.83-121,762.78-39,026.95

Finding the Fourth Proportional to 81,158.83, 121,762.78 and 39,026.95

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Solution

The fourth proportional to 81,158.83, 121,762.78 and 39,026.95 is: 58,552.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158.83 : 121,762.78 = 39,026.95 : x
  2. Step 2: Convert to fraction form
    81,158.83/121,762.78 = 39,026.95/x
  3. Step 3: Cross multiply
    81,158.83x = 121,762.78 × 39,026.95
  4. Step 4: Simplify right side
    81,158.83x = 4,752,029,524.95
  5. Step 5: Solve for x
    x = 4,752,029,524.95/81,158.83
  6. Step 6: Final answer
    x = 58,552.22

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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.