Home / 87,718.02-131,587.31-30,774.51

Finding the Fourth Proportional to 87,718.02, 131,587.31 and 30,774.51

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Solution

The fourth proportional to 87,718.02, 131,587.31 and 30,774.51 is: 46,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.02 : 131,587.31 = 30,774.51 : x
  2. Step 2: Convert to fraction form
    87,718.02/131,587.31 = 30,774.51/x
  3. Step 3: Cross multiply
    87,718.02x = 131,587.31 × 30,774.51
  4. Step 4: Simplify right side
    87,718.02x = 4,049,534,987.47
  5. Step 5: Solve for x
    x = 4,049,534,987.47/87,718.02
  6. Step 6: Final answer
    x = 46,165.37

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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.