Home / 83,573.12-115,340.40-58,072.70

Finding the Fourth Proportional to 83,573.12, 115,340.40 and 58,072.70

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Solution

The fourth proportional to 83,573.12, 115,340.40 and 58,072.70 is: 80,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,573.12 : 115,340.40 = 58,072.70 : x
  2. Step 2: Convert to fraction form
    83,573.12/115,340.40 = 58,072.70/x
  3. Step 3: Cross multiply
    83,573.12x = 115,340.40 × 58,072.70
  4. Step 4: Simplify right side
    83,573.12x = 6,698,128,447.08
  5. Step 5: Solve for x
    x = 6,698,128,447.08/83,573.12
  6. Step 6: Final answer
    x = 80,146.92

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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.