Home / 83,612.79-115,437.96-58,111.56

Finding the Fourth Proportional to 83,612.79, 115,437.96 and 58,111.56

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Solution

The fourth proportional to 83,612.79, 115,437.96 and 58,111.56 is: 80,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,612.79 : 115,437.96 = 58,111.56 : x
  2. Step 2: Convert to fraction form
    83,612.79/115,437.96 = 58,111.56/x
  3. Step 3: Cross multiply
    83,612.79x = 115,437.96 × 58,111.56
  4. Step 4: Simplify right side
    83,612.79x = 6,708,279,938.82
  5. Step 5: Solve for x
    x = 6,708,279,938.82/83,612.79
  6. Step 6: Final answer
    x = 80,230.31

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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.