Home / 83,370.12-115,050.80-45,644.38

Finding the Fourth Proportional to 83,370.12, 115,050.80 and 45,644.38

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Solution

The fourth proportional to 83,370.12, 115,050.80 and 45,644.38 is: 62,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,370.12 : 115,050.80 = 45,644.38 : x
  2. Step 2: Convert to fraction form
    83,370.12/115,050.80 = 45,644.38/x
  3. Step 3: Cross multiply
    83,370.12x = 115,050.80 × 45,644.38
  4. Step 4: Simplify right side
    83,370.12x = 5,251,422,434.50
  5. Step 5: Solve for x
    x = 5,251,422,434.50/83,370.12
  6. Step 6: Final answer
    x = 62,989.26

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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.