Home / 83,618.10-115,392.60-45,377.82

Finding the Fourth Proportional to 83,618.10, 115,392.60 and 45,377.82

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Solution

The fourth proportional to 83,618.10, 115,392.60 and 45,377.82 is: 62,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,618.10 : 115,392.60 = 45,377.82 : x
  2. Step 2: Convert to fraction form
    83,618.10/115,392.60 = 45,377.82/x
  3. Step 3: Cross multiply
    83,618.10x = 115,392.60 × 45,377.82
  4. Step 4: Simplify right side
    83,618.10x = 5,236,264,632.13
  5. Step 5: Solve for x
    x = 5,236,264,632.13/83,618.10
  6. Step 6: Final answer
    x = 62,621.19

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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.