Home / 79,025.40-109,084.86-47,182.68

Finding the Fourth Proportional to 79,025.40, 109,084.86 and 47,182.68

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Solution

The fourth proportional to 79,025.40, 109,084.86 and 47,182.68 is: 65,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,025.40 : 109,084.86 = 47,182.68 : x
  2. Step 2: Convert to fraction form
    79,025.40/109,084.86 = 47,182.68/x
  3. Step 3: Cross multiply
    79,025.40x = 109,084.86 × 47,182.68
  4. Step 4: Simplify right side
    79,025.40x = 5,146,916,042.22
  5. Step 5: Solve for x
    x = 5,146,916,042.22/79,025.40
  6. Step 6: Final answer
    x = 65,129.90

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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.