Home / 76,695.12-115,200.12-50,437.20

Finding the Fourth Proportional to 76,695.12, 115,200.12 and 50,437.20

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Solution

The fourth proportional to 76,695.12, 115,200.12 and 50,437.20 is: 75,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.12 : 115,200.12 = 50,437.20 : x
  2. Step 2: Convert to fraction form
    76,695.12/115,200.12 = 50,437.20/x
  3. Step 3: Cross multiply
    76,695.12x = 115,200.12 × 50,437.20
  4. Step 4: Simplify right side
    76,695.12x = 5,810,371,492.46
  5. Step 5: Solve for x
    x = 5,810,371,492.46/76,695.12
  6. Step 6: Final answer
    x = 75,759.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.