Home / 87,106.95-120,214.56-50,819.55

Finding the Fourth Proportional to 87,106.95, 120,214.56 and 50,819.55

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Solution

The fourth proportional to 87,106.95, 120,214.56 and 50,819.55 is: 70,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,106.95 : 120,214.56 = 50,819.55 : x
  2. Step 2: Convert to fraction form
    87,106.95/120,214.56 = 50,819.55/x
  3. Step 3: Cross multiply
    87,106.95x = 120,214.56 × 50,819.55
  4. Step 4: Simplify right side
    87,106.95x = 6,109,249,842.65
  5. Step 5: Solve for x
    x = 6,109,249,842.65/87,106.95
  6. Step 6: Final answer
    x = 70,135.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.