Home / 87,919.43-121,328.75-47,633.33

Finding the Fourth Proportional to 87,919.43, 121,328.75 and 47,633.33

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Solution

The fourth proportional to 87,919.43, 121,328.75 and 47,633.33 is: 65,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,919.43 : 121,328.75 = 47,633.33 : x
  2. Step 2: Convert to fraction form
    87,919.43/121,328.75 = 47,633.33/x
  3. Step 3: Cross multiply
    87,919.43x = 121,328.75 × 47,633.33
  4. Step 4: Simplify right side
    87,919.43x = 5,779,292,809.64
  5. Step 5: Solve for x
    x = 5,779,292,809.64/87,919.43
  6. Step 6: Final answer
    x = 65,733.97

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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.