Home / 90,451.64-124,830.92-50,178.38

Finding the Fourth Proportional to 90,451.64, 124,830.92 and 50,178.38

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Solution

The fourth proportional to 90,451.64, 124,830.92 and 50,178.38 is: 69,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,451.64 : 124,830.92 = 50,178.38 : x
  2. Step 2: Convert to fraction form
    90,451.64/124,830.92 = 50,178.38/x
  3. Step 3: Cross multiply
    90,451.64x = 124,830.92 × 50,178.38
  4. Step 4: Simplify right side
    90,451.64x = 6,263,812,840.80
  5. Step 5: Solve for x
    x = 6,263,812,840.80/90,451.64
  6. Step 6: Final answer
    x = 69,250.40

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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.