Home / 76,428.60-114,659.10-23,116.20

Finding the Fourth Proportional to 76,428.60, 114,659.10 and 23,116.20

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Solution

The fourth proportional to 76,428.60, 114,659.10 and 23,116.20 is: 34,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,428.60 : 114,659.10 = 23,116.20 : x
  2. Step 2: Convert to fraction form
    76,428.60/114,659.10 = 23,116.20/x
  3. Step 3: Cross multiply
    76,428.60x = 114,659.10 × 23,116.20
  4. Step 4: Simplify right side
    76,428.60x = 2,650,482,687.42
  5. Step 5: Solve for x
    x = 2,650,482,687.42/76,428.60
  6. Step 6: Final answer
    x = 34,679.20

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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.