Home / 90,700.40-125,161.19-50,412.78

Finding the Fourth Proportional to 90,700.40, 125,161.19 and 50,412.78

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Solution

The fourth proportional to 90,700.40, 125,161.19 and 50,412.78 is: 69,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.40 : 125,161.19 = 50,412.78 : x
  2. Step 2: Convert to fraction form
    90,700.40/125,161.19 = 50,412.78/x
  3. Step 3: Cross multiply
    90,700.40x = 125,161.19 × 50,412.78
  4. Step 4: Simplify right side
    90,700.40x = 6,309,723,536.01
  5. Step 5: Solve for x
    x = 6,309,723,536.01/90,700.40
  6. Step 6: Final answer
    x = 69,566.66

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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.