Home / 85,731.10-118,199.25-58,826.90

Finding the Fourth Proportional to 85,731.10, 118,199.25 and 58,826.90

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Solution

The fourth proportional to 85,731.10, 118,199.25 and 58,826.90 is: 81,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.10 : 118,199.25 = 58,826.90 : x
  2. Step 2: Convert to fraction form
    85,731.10/118,199.25 = 58,826.90/x
  3. Step 3: Cross multiply
    85,731.10x = 118,199.25 × 58,826.90
  4. Step 4: Simplify right side
    85,731.10x = 6,953,295,459.83
  5. Step 5: Solve for x
    x = 6,953,295,459.83/85,731.10
  6. Step 6: Final answer
    x = 81,105.87

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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.