Home / 69,775.12-96,287.52-39,563.20

Finding the Fourth Proportional to 69,775.12, 96,287.52 and 39,563.20

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Solution

The fourth proportional to 69,775.12, 96,287.52 and 39,563.20 is: 54,596.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,775.12 : 96,287.52 = 39,563.20 : x
  2. Step 2: Convert to fraction form
    69,775.12/96,287.52 = 39,563.20/x
  3. Step 3: Cross multiply
    69,775.12x = 96,287.52 × 39,563.20
  4. Step 4: Simplify right side
    69,775.12x = 3,809,442,411.26
  5. Step 5: Solve for x
    x = 3,809,442,411.26/69,775.12
  6. Step 6: Final answer
    x = 54,596.00

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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.