Home / 87,707.54-131,561.04-31,547.56

Finding the Fourth Proportional to 87,707.54, 131,561.04 and 31,547.56

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Solution

The fourth proportional to 87,707.54, 131,561.04 and 31,547.56 is: 47,321.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,707.54 : 131,561.04 = 31,547.56 : x
  2. Step 2: Convert to fraction form
    87,707.54/131,561.04 = 31,547.56/x
  3. Step 3: Cross multiply
    87,707.54x = 131,561.04 × 31,547.56
  4. Step 4: Simplify right side
    87,707.54x = 4,150,429,803.06
  5. Step 5: Solve for x
    x = 4,150,429,803.06/87,707.54
  6. Step 6: Final answer
    x = 47,321.24

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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.