Home / 74,479.10-111,718.61-21,888.56

Finding the Fourth Proportional to 74,479.10, 111,718.61 and 21,888.56

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Solution

The fourth proportional to 74,479.10, 111,718.61 and 21,888.56 is: 32,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,479.10 : 111,718.61 = 21,888.56 : x
  2. Step 2: Convert to fraction form
    74,479.10/111,718.61 = 21,888.56/x
  3. Step 3: Cross multiply
    74,479.10x = 111,718.61 × 21,888.56
  4. Step 4: Simplify right side
    74,479.10x = 2,445,359,750.04
  5. Step 5: Solve for x
    x = 2,445,359,750.04/74,479.10
  6. Step 6: Final answer
    x = 32,832.83

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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.