Home / 80,967.40-111,735.20-45,159.73

Finding the Fourth Proportional to 80,967.40, 111,735.20 and 45,159.73

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Solution

The fourth proportional to 80,967.40, 111,735.20 and 45,159.73 is: 62,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,967.40 : 111,735.20 = 45,159.73 : x
  2. Step 2: Convert to fraction form
    80,967.40/111,735.20 = 45,159.73/x
  3. Step 3: Cross multiply
    80,967.40x = 111,735.20 × 45,159.73
  4. Step 4: Simplify right side
    80,967.40x = 5,045,931,297.06
  5. Step 5: Solve for x
    x = 5,045,931,297.06/80,967.40
  6. Step 6: Final answer
    x = 62,320.53

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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.