Home / 78,306.28-117,459.06-22,146.28

Finding the Fourth Proportional to 78,306.28, 117,459.06 and 22,146.28

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Solution

The fourth proportional to 78,306.28, 117,459.06 and 22,146.28 is: 33,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,306.28 : 117,459.06 = 22,146.28 : x
  2. Step 2: Convert to fraction form
    78,306.28/117,459.06 = 22,146.28/x
  3. Step 3: Cross multiply
    78,306.28x = 117,459.06 × 22,146.28
  4. Step 4: Simplify right side
    78,306.28x = 2,601,281,231.30
  5. Step 5: Solve for x
    x = 2,601,281,231.30/78,306.28
  6. Step 6: Final answer
    x = 33,219.32

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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.