Home / 87,758.64-121,106.76-47,472.27

Finding the Fourth Proportional to 87,758.64, 121,106.76 and 47,472.27

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Solution

The fourth proportional to 87,758.64, 121,106.76 and 47,472.27 is: 65,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,758.64 : 121,106.76 = 47,472.27 : x
  2. Step 2: Convert to fraction form
    87,758.64/121,106.76 = 47,472.27/x
  3. Step 3: Cross multiply
    87,758.64x = 121,106.76 × 47,472.27
  4. Step 4: Simplify right side
    87,758.64x = 5,749,212,809.55
  5. Step 5: Solve for x
    x = 5,749,212,809.55/87,758.64
  6. Step 6: Final answer
    x = 65,511.64

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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.