Home / 87,697.22-121,023.34-51,886.32

Finding the Fourth Proportional to 87,697.22, 121,023.34 and 51,886.32

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Solution

The fourth proportional to 87,697.22, 121,023.34 and 51,886.32 is: 71,603.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,697.22 : 121,023.34 = 51,886.32 : x
  2. Step 2: Convert to fraction form
    87,697.22/121,023.34 = 51,886.32/x
  3. Step 3: Cross multiply
    87,697.22x = 121,023.34 × 51,886.32
  4. Step 4: Simplify right side
    87,697.22x = 6,279,455,746.71
  5. Step 5: Solve for x
    x = 6,279,455,746.71/87,697.22
  6. Step 6: Final answer
    x = 71,603.82

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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.