Home / 87,717.05-121,049.44-47,430.71

Finding the Fourth Proportional to 87,717.05, 121,049.44 and 47,430.71

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Solution

The fourth proportional to 87,717.05, 121,049.44 and 47,430.71 is: 65,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.05 : 121,049.44 = 47,430.71 : x
  2. Step 2: Convert to fraction form
    87,717.05/121,049.44 = 47,430.71/x
  3. Step 3: Cross multiply
    87,717.05x = 121,049.44 × 47,430.71
  4. Step 4: Simplify right side
    87,717.05x = 5,741,461,068.35
  5. Step 5: Solve for x
    x = 5,741,461,068.35/87,717.05
  6. Step 6: Final answer
    x = 65,454.34

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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.