Home / 87,868.77-121,259.48-47,582.54

Finding the Fourth Proportional to 87,868.77, 121,259.48 and 47,582.54

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Solution

The fourth proportional to 87,868.77, 121,259.48 and 47,582.54 is: 65,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.77 : 121,259.48 = 47,582.54 : x
  2. Step 2: Convert to fraction form
    87,868.77/121,259.48 = 47,582.54/x
  3. Step 3: Cross multiply
    87,868.77x = 121,259.48 × 47,582.54
  4. Step 4: Simplify right side
    87,868.77x = 5,769,833,213.27
  5. Step 5: Solve for x
    x = 5,769,833,213.27/87,868.77
  6. Step 6: Final answer
    x = 65,664.21

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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.