Home / 72,242.25-99,694.31-47,091.75

Finding the Fourth Proportional to 72,242.25, 99,694.31 and 47,091.75

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Solution

The fourth proportional to 72,242.25, 99,694.31 and 47,091.75 is: 64,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,242.25 : 99,694.31 = 47,091.75 : x
  2. Step 2: Convert to fraction form
    72,242.25/99,694.31 = 47,091.75/x
  3. Step 3: Cross multiply
    72,242.25x = 99,694.31 × 47,091.75
  4. Step 4: Simplify right side
    72,242.25x = 4,694,779,287.48
  5. Step 5: Solve for x
    x = 4,694,779,287.48/72,242.25
  6. Step 6: Final answer
    x = 64,986.62

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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.