Home / 80,763.12-111,430.76-48,489.52

Finding the Fourth Proportional to 80,763.12, 111,430.76 and 48,489.52

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Solution

The fourth proportional to 80,763.12, 111,430.76 and 48,489.52 is: 66,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.12 : 111,430.76 = 48,489.52 : x
  2. Step 2: Convert to fraction form
    80,763.12/111,430.76 = 48,489.52/x
  3. Step 3: Cross multiply
    80,763.12x = 111,430.76 × 48,489.52
  4. Step 4: Simplify right side
    80,763.12x = 5,403,224,065.64
  5. Step 5: Solve for x
    x = 5,403,224,065.64/80,763.12
  6. Step 6: Final answer
    x = 66,902.12

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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.