Home / 95,143.50-142,709.76-28,582.20

Finding the Fourth Proportional to 95,143.50, 142,709.76 and 28,582.20

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Solution

The fourth proportional to 95,143.50, 142,709.76 and 28,582.20 is: 42,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,143.50 : 142,709.76 = 28,582.20 : x
  2. Step 2: Convert to fraction form
    95,143.50/142,709.76 = 28,582.20/x
  3. Step 3: Cross multiply
    95,143.50x = 142,709.76 × 28,582.20
  4. Step 4: Simplify right side
    95,143.50x = 4,078,958,902.27
  5. Step 5: Solve for x
    x = 4,078,958,902.27/95,143.50
  6. Step 6: Final answer
    x = 42,871.65

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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.