Home / 88,191.45-121,704.48-47,905.83

Finding the Fourth Proportional to 88,191.45, 121,704.48 and 47,905.83

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Solution

The fourth proportional to 88,191.45, 121,704.48 and 47,905.83 is: 66,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,191.45 : 121,704.48 = 47,905.83 : x
  2. Step 2: Convert to fraction form
    88,191.45/121,704.48 = 47,905.83/x
  3. Step 3: Cross multiply
    88,191.45x = 121,704.48 × 47,905.83
  4. Step 4: Simplify right side
    88,191.45x = 5,830,354,129.12
  5. Step 5: Solve for x
    x = 5,830,354,129.12/88,191.45
  6. Step 6: Final answer
    x = 66,110.20

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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.