Home / 87,995.48-121,433.38-47,709.12

Finding the Fourth Proportional to 87,995.48, 121,433.38 and 47,709.12

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Solution

The fourth proportional to 87,995.48, 121,433.38 and 47,709.12 is: 65,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.48 : 121,433.38 = 47,709.12 : x
  2. Step 2: Convert to fraction form
    87,995.48/121,433.38 = 47,709.12/x
  3. Step 3: Cross multiply
    87,995.48x = 121,433.38 × 47,709.12
  4. Step 4: Simplify right side
    87,995.48x = 5,793,479,698.43
  5. Step 5: Solve for x
    x = 5,793,479,698.43/87,995.48
  6. Step 6: Final answer
    x = 65,838.38

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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.