Home / 87,993.48-121,429.98-47,707.32

Finding the Fourth Proportional to 87,993.48, 121,429.98 and 47,707.32

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Solution

The fourth proportional to 87,993.48, 121,429.98 and 47,707.32 is: 65,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,993.48 : 121,429.98 = 47,707.32 : x
  2. Step 2: Convert to fraction form
    87,993.48/121,429.98 = 47,707.32/x
  3. Step 3: Cross multiply
    87,993.48x = 121,429.98 × 47,707.32
  4. Step 4: Simplify right side
    87,993.48x = 5,793,098,913.45
  5. Step 5: Solve for x
    x = 5,793,098,913.45/87,993.48
  6. Step 6: Final answer
    x = 65,835.55

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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.