Home / 85,520.96-118,019.20-49,711.68

Finding the Fourth Proportional to 85,520.96, 118,019.20 and 49,711.68

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Solution

The fourth proportional to 85,520.96, 118,019.20 and 49,711.68 is: 68,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.96 : 118,019.20 = 49,711.68 : x
  2. Step 2: Convert to fraction form
    85,520.96/118,019.20 = 49,711.68/x
  3. Step 3: Cross multiply
    85,520.96x = 118,019.20 × 49,711.68
  4. Step 4: Simplify right side
    85,520.96x = 5,866,932,704.26
  5. Step 5: Solve for x
    x = 5,866,932,704.26/85,520.96
  6. Step 6: Final answer
    x = 68,602.28

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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.