Home / 85,020.77-127,535.67-25,851.89

Finding the Fourth Proportional to 85,020.77, 127,535.67 and 25,851.89

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Solution

The fourth proportional to 85,020.77, 127,535.67 and 25,851.89 is: 38,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,020.77 : 127,535.67 = 25,851.89 : x
  2. Step 2: Convert to fraction form
    85,020.77/127,535.67 = 25,851.89/x
  3. Step 3: Cross multiply
    85,020.77x = 127,535.67 × 25,851.89
  4. Step 4: Simplify right side
    85,020.77x = 3,297,037,474.24
  5. Step 5: Solve for x
    x = 3,297,037,474.24/85,020.77
  6. Step 6: Final answer
    x = 38,779.20

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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.