Home / 84,470.16-126,723.30-31,162.32

Finding the Fourth Proportional to 84,470.16, 126,723.30 and 31,162.32

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Solution

The fourth proportional to 84,470.16, 126,723.30 and 31,162.32 is: 46,750.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,470.16 : 126,723.30 = 31,162.32 : x
  2. Step 2: Convert to fraction form
    84,470.16/126,723.30 = 31,162.32/x
  3. Step 3: Cross multiply
    84,470.16x = 126,723.30 × 31,162.32
  4. Step 4: Simplify right side
    84,470.16x = 3,948,992,026.06
  5. Step 5: Solve for x
    x = 3,948,992,026.06/84,470.16
  6. Step 6: Final answer
    x = 46,750.14

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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.