Home / 78,277.43-108,022.89-42,467.43

Finding the Fourth Proportional to 78,277.43, 108,022.89 and 42,467.43

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Solution

The fourth proportional to 78,277.43, 108,022.89 and 42,467.43 is: 58,605.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,277.43 : 108,022.89 = 42,467.43 : x
  2. Step 2: Convert to fraction form
    78,277.43/108,022.89 = 42,467.43/x
  3. Step 3: Cross multiply
    78,277.43x = 108,022.89 × 42,467.43
  4. Step 4: Simplify right side
    78,277.43x = 4,587,454,519.47
  5. Step 5: Solve for x
    x = 4,587,454,519.47/78,277.43
  6. Step 6: Final answer
    x = 58,605.07

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1.5x scale

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.