Home / 75,122.90-112,518.24-51,374.16

Finding the Fourth Proportional to 75,122.90, 112,518.24 and 51,374.16

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Solution

The fourth proportional to 75,122.90, 112,518.24 and 51,374.16 is: 76,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,122.90 : 112,518.24 = 51,374.16 : x
  2. Step 2: Convert to fraction form
    75,122.90/112,518.24 = 51,374.16/x
  3. Step 3: Cross multiply
    75,122.90x = 112,518.24 × 51,374.16
  4. Step 4: Simplify right side
    75,122.90x = 5,780,530,064.68
  5. Step 5: Solve for x
    x = 5,780,530,064.68/75,122.90
  6. Step 6: Final answer
    x = 76,947.65

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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.