Home / 87,734.24-121,030.40-57,506.25

Finding the Fourth Proportional to 87,734.24, 121,030.40 and 57,506.25

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Solution

The fourth proportional to 87,734.24, 121,030.40 and 57,506.25 is: 79,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,734.24 : 121,030.40 = 57,506.25 : x
  2. Step 2: Convert to fraction form
    87,734.24/121,030.40 = 57,506.25/x
  3. Step 3: Cross multiply
    87,734.24x = 121,030.40 × 57,506.25
  4. Step 4: Simplify right side
    87,734.24x = 6,960,005,037.63
  5. Step 5: Solve for x
    x = 6,960,005,037.63/87,734.24
  6. Step 6: Final answer
    x = 79,330.55

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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.