Home / 87,704.83-121,032.66-47,418.58

Finding the Fourth Proportional to 87,704.83, 121,032.66 and 47,418.58

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Solution

The fourth proportional to 87,704.83, 121,032.66 and 47,418.58 is: 65,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.83 : 121,032.66 = 47,418.58 : x
  2. Step 2: Convert to fraction form
    87,704.83/121,032.66 = 47,418.58/x
  3. Step 3: Cross multiply
    87,704.83x = 121,032.66 × 47,418.58
  4. Step 4: Simplify right side
    87,704.83x = 5,739,196,870.82
  5. Step 5: Solve for x
    x = 5,739,196,870.82/87,704.83
  6. Step 6: Final answer
    x = 65,437.64

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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.