Home / 84,422.27-126,639.18-28,260.11

Finding the Fourth Proportional to 84,422.27, 126,639.18 and 28,260.11

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Solution

The fourth proportional to 84,422.27, 126,639.18 and 28,260.11 is: 42,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,422.27 : 126,639.18 = 28,260.11 : x
  2. Step 2: Convert to fraction form
    84,422.27/126,639.18 = 28,260.11/x
  3. Step 3: Cross multiply
    84,422.27x = 126,639.18 × 28,260.11
  4. Step 4: Simplify right side
    84,422.27x = 3,578,837,473.71
  5. Step 5: Solve for x
    x = 3,578,837,473.71/84,422.27
  6. Step 6: Final answer
    x = 42,392.10

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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.