Home / 83,380.86-115,083.45-53,159.22

Finding the Fourth Proportional to 83,380.86, 115,083.45 and 53,159.22

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Solution

The fourth proportional to 83,380.86, 115,083.45 and 53,159.22 is: 73,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,380.86 : 115,083.45 = 53,159.22 : x
  2. Step 2: Convert to fraction form
    83,380.86/115,083.45 = 53,159.22/x
  3. Step 3: Cross multiply
    83,380.86x = 115,083.45 × 53,159.22
  4. Step 4: Simplify right side
    83,380.86x = 6,117,746,436.91
  5. Step 5: Solve for x
    x = 6,117,746,436.91/83,380.86
  6. Step 6: Final answer
    x = 73,371.11

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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.