Home / 74,010.20-111,015.30-72,282.20

Finding the Fourth Proportional to 74,010.20, 111,015.30 and 72,282.20

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Solution

The fourth proportional to 74,010.20, 111,015.30 and 72,282.20 is: 108,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010.20 : 111,015.30 = 72,282.20 : x
  2. Step 2: Convert to fraction form
    74,010.20/111,015.30 = 72,282.20/x
  3. Step 3: Cross multiply
    74,010.20x = 111,015.30 × 72,282.20
  4. Step 4: Simplify right side
    74,010.20x = 8,024,430,117.66
  5. Step 5: Solve for x
    x = 8,024,430,117.66/74,010.20
  6. Step 6: Final answer
    x = 108,423.30

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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.