Home / 83,620.96-115,397.00-45,380.51

Finding the Fourth Proportional to 83,620.96, 115,397.00 and 45,380.51

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Solution

The fourth proportional to 83,620.96, 115,397.00 and 45,380.51 is: 62,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.96 : 115,397.00 = 45,380.51 : x
  2. Step 2: Convert to fraction form
    83,620.96/115,397.00 = 45,380.51/x
  3. Step 3: Cross multiply
    83,620.96x = 115,397.00 × 45,380.51
  4. Step 4: Simplify right side
    83,620.96x = 5,236,774,708.42
  5. Step 5: Solve for x
    x = 5,236,774,708.42/83,620.96
  6. Step 6: Final answer
    x = 62,625.15

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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.