Home / 66,559.20-99,788.88-40,258.56

Finding the Fourth Proportional to 66,559.20, 99,788.88 and 40,258.56

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Solution

The fourth proportional to 66,559.20, 99,788.88 and 40,258.56 is: 60,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.20 : 99,788.88 = 40,258.56 : x
  2. Step 2: Convert to fraction form
    66,559.20/99,788.88 = 40,258.56/x
  3. Step 3: Cross multiply
    66,559.20x = 99,788.88 × 40,258.56
  4. Step 4: Simplify right side
    66,559.20x = 4,017,356,612.81
  5. Step 5: Solve for x
    x = 4,017,356,612.81/66,559.20
  6. Step 6: Final answer
    x = 60,357.65

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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.