Home / 77,911.20-107,511.12-43,925.04

Finding the Fourth Proportional to 77,911.20, 107,511.12 and 43,925.04

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Solution

The fourth proportional to 77,911.20, 107,511.12 and 43,925.04 is: 60,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,911.20 : 107,511.12 = 43,925.04 : x
  2. Step 2: Convert to fraction form
    77,911.20/107,511.12 = 43,925.04/x
  3. Step 3: Cross multiply
    77,911.20x = 107,511.12 × 43,925.04
  4. Step 4: Simplify right side
    77,911.20x = 4,722,430,246.44
  5. Step 5: Solve for x
    x = 4,722,430,246.44/77,911.20
  6. Step 6: Final answer
    x = 60,612.98

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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.