Home / 87,763.91-121,113.70-47,477.54

Finding the Fourth Proportional to 87,763.91, 121,113.70 and 47,477.54

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Solution

The fourth proportional to 87,763.91, 121,113.70 and 47,477.54 is: 65,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,763.91 : 121,113.70 = 47,477.54 : x
  2. Step 2: Convert to fraction form
    87,763.91/121,113.70 = 47,477.54/x
  3. Step 3: Cross multiply
    87,763.91x = 121,113.70 × 47,477.54
  4. Step 4: Simplify right side
    87,763.91x = 5,750,180,720.39
  5. Step 5: Solve for x
    x = 5,750,180,720.39/87,763.91
  6. Step 6: Final answer
    x = 65,518.74

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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.