Home / 83,054.40-124,581.60-66,619.20

Finding the Fourth Proportional to 83,054.40, 124,581.60 and 66,619.20

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Solution

The fourth proportional to 83,054.40, 124,581.60 and 66,619.20 is: 99,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,054.40 : 124,581.60 = 66,619.20 : x
  2. Step 2: Convert to fraction form
    83,054.40/124,581.60 = 66,619.20/x
  3. Step 3: Cross multiply
    83,054.40x = 124,581.60 × 66,619.20
  4. Step 4: Simplify right side
    83,054.40x = 8,299,526,526.72
  5. Step 5: Solve for x
    x = 8,299,526,526.72/83,054.40
  6. Step 6: Final answer
    x = 99,928.80

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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.