Home / 90,570.43-124,982.32-50,281.60

Finding the Fourth Proportional to 90,570.43, 124,982.32 and 50,281.60

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Solution

The fourth proportional to 90,570.43, 124,982.32 and 50,281.60 is: 69,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,570.43 : 124,982.32 = 50,281.60 : x
  2. Step 2: Convert to fraction form
    90,570.43/124,982.32 = 50,281.60/x
  3. Step 3: Cross multiply
    90,570.43x = 124,982.32 × 50,281.60
  4. Step 4: Simplify right side
    90,570.43x = 6,284,310,769.90
  5. Step 5: Solve for x
    x = 6,284,310,769.90/90,570.43
  6. Step 6: Final answer
    x = 69,385.90

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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.