Home / 69,078.80-95,345.64-45,263.12

Finding the Fourth Proportional to 69,078.80, 95,345.64 and 45,263.12

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Solution

The fourth proportional to 69,078.80, 95,345.64 and 45,263.12 is: 62,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,078.80 : 95,345.64 = 45,263.12 : x
  2. Step 2: Convert to fraction form
    69,078.80/95,345.64 = 45,263.12/x
  3. Step 3: Cross multiply
    69,078.80x = 95,345.64 × 45,263.12
  4. Step 4: Simplify right side
    69,078.80x = 4,315,641,144.80
  5. Step 5: Solve for x
    x = 4,315,641,144.80/69,078.80
  6. Step 6: Final answer
    x = 62,474.18

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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.