Home / 57,129.50-85,755.40-48,352.10

Finding the Fourth Proportional to 57,129.50, 85,755.40 and 48,352.10

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Solution

The fourth proportional to 57,129.50, 85,755.40 and 48,352.10 is: 72,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129.50 : 85,755.40 = 48,352.10 : x
  2. Step 2: Convert to fraction form
    57,129.50/85,755.40 = 48,352.10/x
  3. Step 3: Cross multiply
    57,129.50x = 85,755.40 × 48,352.10
  4. Step 4: Simplify right side
    57,129.50x = 4,146,453,676.34
  5. Step 5: Solve for x
    x = 4,146,453,676.34/57,129.50
  6. Step 6: Final answer
    x = 72,579.90

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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.