Home / 87,882.47-121,277.70-47,596.21

Finding the Fourth Proportional to 87,882.47, 121,277.70 and 47,596.21

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Solution

The fourth proportional to 87,882.47, 121,277.70 and 47,596.21 is: 65,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.47 : 121,277.70 = 47,596.21 : x
  2. Step 2: Convert to fraction form
    87,882.47/121,277.70 = 47,596.21/x
  3. Step 3: Cross multiply
    87,882.47x = 121,277.70 × 47,596.21
  4. Step 4: Simplify right side
    87,882.47x = 5,772,358,866.51
  5. Step 5: Solve for x
    x = 5,772,358,866.51/87,882.47
  6. Step 6: Final answer
    x = 65,682.71

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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.