Home / 40,493.95-55,920.15-31,046.11

Finding the Fourth Proportional to 40,493.95, 55,920.15 and 31,046.11

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Solution

The fourth proportional to 40,493.95, 55,920.15 and 31,046.11 is: 42,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,493.95 : 55,920.15 = 31,046.11 : x
  2. Step 2: Convert to fraction form
    40,493.95/55,920.15 = 31,046.11/x
  3. Step 3: Cross multiply
    40,493.95x = 55,920.15 × 31,046.11
  4. Step 4: Simplify right side
    40,493.95x = 1,736,102,988.32
  5. Step 5: Solve for x
    x = 1,736,102,988.32/40,493.95
  6. Step 6: Final answer
    x = 42,873.15

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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.