Home / 87,922.78-121,333.27-47,637.56

Finding the Fourth Proportional to 87,922.78, 121,333.27 and 47,637.56

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Solution

The fourth proportional to 87,922.78, 121,333.27 and 47,637.56 is: 65,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,922.78 : 121,333.27 = 47,637.56 : x
  2. Step 2: Convert to fraction form
    87,922.78/121,333.27 = 47,637.56/x
  3. Step 3: Cross multiply
    87,922.78x = 121,333.27 × 47,637.56
  4. Step 4: Simplify right side
    87,922.78x = 5,780,020,929.62
  5. Step 5: Solve for x
    x = 5,780,020,929.62/87,922.78
  6. Step 6: Final answer
    x = 65,739.74

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1.5x scale

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.