Home / 40,112.57-60,123.74-15,135.66

Finding the Fourth Proportional to 40,112.57, 60,123.74 and 15,135.66

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Solution

The fourth proportional to 40,112.57, 60,123.74 and 15,135.66 is: 22,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,112.57 : 60,123.74 = 15,135.66 : x
  2. Step 2: Convert to fraction form
    40,112.57/60,123.74 = 15,135.66/x
  3. Step 3: Cross multiply
    40,112.57x = 60,123.74 × 15,135.66
  4. Step 4: Simplify right side
    40,112.57x = 910,012,486.57
  5. Step 5: Solve for x
    x = 910,012,486.57/40,112.57
  6. Step 6: Final answer
    x = 22,686.47

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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.