Home / 87,879.32-121,272.80-47,592.14

Finding the Fourth Proportional to 87,879.32, 121,272.80 and 47,592.14

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Solution

The fourth proportional to 87,879.32, 121,272.80 and 47,592.14 is: 65,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.32 : 121,272.80 = 47,592.14 : x
  2. Step 2: Convert to fraction form
    87,879.32/121,272.80 = 47,592.14/x
  3. Step 3: Cross multiply
    87,879.32x = 121,272.80 × 47,592.14
  4. Step 4: Simplify right side
    87,879.32x = 5,771,632,075.79
  5. Step 5: Solve for x
    x = 5,771,632,075.79/87,879.32
  6. Step 6: Final answer
    x = 65,676.79

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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.