Home / 87,788.58-121,147.34-47,501.46

Finding the Fourth Proportional to 87,788.58, 121,147.34 and 47,501.46

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Solution

The fourth proportional to 87,788.58, 121,147.34 and 47,501.46 is: 65,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.58 : 121,147.34 = 47,501.46 : x
  2. Step 2: Convert to fraction form
    87,788.58/121,147.34 = 47,501.46/x
  3. Step 3: Cross multiply
    87,788.58x = 121,147.34 × 47,501.46
  4. Step 4: Simplify right side
    87,788.58x = 5,754,675,525.12
  5. Step 5: Solve for x
    x = 5,754,675,525.12/87,788.58
  6. Step 6: Final answer
    x = 65,551.53

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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.