Home / 87,920.55-121,330.48-47,634.31

Finding the Fourth Proportional to 87,920.55, 121,330.48 and 47,634.31

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Solution

The fourth proportional to 87,920.55, 121,330.48 and 47,634.31 is: 65,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,920.55 : 121,330.48 = 47,634.31 : x
  2. Step 2: Convert to fraction form
    87,920.55/121,330.48 = 47,634.31/x
  3. Step 3: Cross multiply
    87,920.55x = 121,330.48 × 47,634.31
  4. Step 4: Simplify right side
    87,920.55x = 5,779,493,696.77
  5. Step 5: Solve for x
    x = 5,779,493,696.77/87,920.55
  6. Step 6: Final answer
    x = 65,735.41

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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.