Home / 87,914.72-121,322.36-47,628.76

Finding the Fourth Proportional to 87,914.72, 121,322.36 and 47,628.76

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Solution

The fourth proportional to 87,914.72, 121,322.36 and 47,628.76 is: 65,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.72 : 121,322.36 = 47,628.76 : x
  2. Step 2: Convert to fraction form
    87,914.72/121,322.36 = 47,628.76/x
  3. Step 3: Cross multiply
    87,914.72x = 121,322.36 × 47,628.76
  4. Step 4: Simplify right side
    87,914.72x = 5,778,433,567.07
  5. Step 5: Solve for x
    x = 5,778,433,567.07/87,914.72
  6. Step 6: Final answer
    x = 65,727.71

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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.