Home / 66,470.20-99,778.20-41,538.40

Finding the Fourth Proportional to 66,470.20, 99,778.20 and 41,538.40

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Solution

The fourth proportional to 66,470.20, 99,778.20 and 41,538.40 is: 62,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.20 : 99,778.20 = 41,538.40 : x
  2. Step 2: Convert to fraction form
    66,470.20/99,778.20 = 41,538.40/x
  3. Step 3: Cross multiply
    66,470.20x = 99,778.20 × 41,538.40
  4. Step 4: Simplify right side
    66,470.20x = 4,144,626,782.88
  5. Step 5: Solve for x
    x = 4,144,626,782.88/66,470.20
  6. Step 6: Final answer
    x = 62,353.16

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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.