Home / 90,845.12-125,372.40-50,562.20

Finding the Fourth Proportional to 90,845.12, 125,372.40 and 50,562.20

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Solution

The fourth proportional to 90,845.12, 125,372.40 and 50,562.20 is: 69,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.12 : 125,372.40 = 50,562.20 : x
  2. Step 2: Convert to fraction form
    90,845.12/125,372.40 = 50,562.20/x
  3. Step 3: Cross multiply
    90,845.12x = 125,372.40 × 50,562.20
  4. Step 4: Simplify right side
    90,845.12x = 6,339,104,363.28
  5. Step 5: Solve for x
    x = 6,339,104,363.28/90,845.12
  6. Step 6: Final answer
    x = 69,779.25

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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.