Home / 90,451.40-124,830.57-50,178.12

Finding the Fourth Proportional to 90,451.40, 124,830.57 and 50,178.12

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Solution

The fourth proportional to 90,451.40, 124,830.57 and 50,178.12 is: 69,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,451.40 : 124,830.57 = 50,178.12 : x
  2. Step 2: Convert to fraction form
    90,451.40/124,830.57 = 50,178.12/x
  3. Step 3: Cross multiply
    90,451.40x = 124,830.57 × 50,178.12
  4. Step 4: Simplify right side
    90,451.40x = 6,263,763,321.13
  5. Step 5: Solve for x
    x = 6,263,763,321.13/90,451.40
  6. Step 6: Final answer
    x = 69,250.05

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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.