Home / 90,421.83-124,780.01-50,135.22

Finding the Fourth Proportional to 90,421.83, 124,780.01 and 50,135.22

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Solution

The fourth proportional to 90,421.83, 124,780.01 and 50,135.22 is: 69,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,421.83 : 124,780.01 = 50,135.22 : x
  2. Step 2: Convert to fraction form
    90,421.83/124,780.01 = 50,135.22/x
  3. Step 3: Cross multiply
    90,421.83x = 124,780.01 × 50,135.22
  4. Step 4: Simplify right side
    90,421.83x = 6,255,873,002.28
  5. Step 5: Solve for x
    x = 6,255,873,002.28/90,421.83
  6. Step 6: Final answer
    x = 69,185.43

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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.