Home / 74,928.45-112,390.08-18,769.04

Finding the Fourth Proportional to 74,928.45, 112,390.08 and 18,769.04

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Solution

The fourth proportional to 74,928.45, 112,390.08 and 18,769.04 is: 28,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,928.45 : 112,390.08 = 18,769.04 : x
  2. Step 2: Convert to fraction form
    74,928.45/112,390.08 = 18,769.04/x
  3. Step 3: Cross multiply
    74,928.45x = 112,390.08 × 18,769.04
  4. Step 4: Simplify right side
    74,928.45x = 2,109,454,117.92
  5. Step 5: Solve for x
    x = 2,109,454,117.92/74,928.45
  6. Step 6: Final answer
    x = 28,152.91

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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.