Home / 86,579.60-129,869.40-49,254.80

Finding the Fourth Proportional to 86,579.60, 129,869.40 and 49,254.80

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Solution

The fourth proportional to 86,579.60, 129,869.40 and 49,254.80 is: 73,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,579.60 : 129,869.40 = 49,254.80 : x
  2. Step 2: Convert to fraction form
    86,579.60/129,869.40 = 49,254.80/x
  3. Step 3: Cross multiply
    86,579.60x = 129,869.40 × 49,254.80
  4. Step 4: Simplify right side
    86,579.60x = 6,396,691,323.12
  5. Step 5: Solve for x
    x = 6,396,691,323.12/86,579.60
  6. Step 6: Final answer
    x = 73,882.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.