Home / 83,800.38-125,667.63-30,479.70

Finding the Fourth Proportional to 83,800.38, 125,667.63 and 30,479.70

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Solution

The fourth proportional to 83,800.38, 125,667.63 and 30,479.70 is: 45,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,800.38 : 125,667.63 = 30,479.70 : x
  2. Step 2: Convert to fraction form
    83,800.38/125,667.63 = 30,479.70/x
  3. Step 3: Cross multiply
    83,800.38x = 125,667.63 × 30,479.70
  4. Step 4: Simplify right side
    83,800.38x = 3,830,311,662.11
  5. Step 5: Solve for x
    x = 3,830,311,662.11/83,800.38
  6. Step 6: Final answer
    x = 45,707.57

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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.