Home / 72,047.46-108,109.26-51,122.74

Finding the Fourth Proportional to 72,047.46, 108,109.26 and 51,122.74

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Solution

The fourth proportional to 72,047.46, 108,109.26 and 51,122.74 is: 76,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,047.46 : 108,109.26 = 51,122.74 : x
  2. Step 2: Convert to fraction form
    72,047.46/108,109.26 = 51,122.74/x
  3. Step 3: Cross multiply
    72,047.46x = 108,109.26 × 51,122.74
  4. Step 4: Simplify right side
    72,047.46x = 5,526,841,590.57
  5. Step 5: Solve for x
    x = 5,526,841,590.57/72,047.46
  6. Step 6: Final answer
    x = 76,711.12

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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.