Home / 88,107.76-121,585.46-47,820.66

Finding the Fourth Proportional to 88,107.76, 121,585.46 and 47,820.66

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Solution

The fourth proportional to 88,107.76, 121,585.46 and 47,820.66 is: 65,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,107.76 : 121,585.46 = 47,820.66 : x
  2. Step 2: Convert to fraction form
    88,107.76/121,585.46 = 47,820.66/x
  3. Step 3: Cross multiply
    88,107.76x = 121,585.46 × 47,820.66
  4. Step 4: Simplify right side
    88,107.76x = 5,814,296,676.00
  5. Step 5: Solve for x
    x = 5,814,296,676.00/88,107.76
  6. Step 6: Final answer
    x = 65,990.74

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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.