Home / 87,837.30-121,215.51-47,551.07

Finding the Fourth Proportional to 87,837.30, 121,215.51 and 47,551.07

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Solution

The fourth proportional to 87,837.30, 121,215.51 and 47,551.07 is: 65,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.30 : 121,215.51 = 47,551.07 : x
  2. Step 2: Convert to fraction form
    87,837.30/121,215.51 = 47,551.07/x
  3. Step 3: Cross multiply
    87,837.30x = 121,215.51 × 47,551.07
  4. Step 4: Simplify right side
    87,837.30x = 5,763,926,595.02
  5. Step 5: Solve for x
    x = 5,763,926,595.02/87,837.30
  6. Step 6: Final answer
    x = 65,620.49

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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.