Home / 57,209.10-85,813.65-51,765.90

Finding the Fourth Proportional to 57,209.10, 85,813.65 and 51,765.90

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Solution

The fourth proportional to 57,209.10, 85,813.65 and 51,765.90 is: 77,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.10 : 85,813.65 = 51,765.90 : x
  2. Step 2: Convert to fraction form
    57,209.10/85,813.65 = 51,765.90/x
  3. Step 3: Cross multiply
    57,209.10x = 85,813.65 × 51,765.90
  4. Step 4: Simplify right side
    57,209.10x = 4,442,220,824.54
  5. Step 5: Solve for x
    x = 4,442,220,824.54/57,209.10
  6. Step 6: Final answer
    x = 77,648.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.