Home / 87,977.22-121,245.74-62,484.70

Finding the Fourth Proportional to 87,977.22, 121,245.74 and 62,484.70

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Solution

The fourth proportional to 87,977.22, 121,245.74 and 62,484.70 is: 86,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,977.22 : 121,245.74 = 62,484.70 : x
  2. Step 2: Convert to fraction form
    87,977.22/121,245.74 = 62,484.70/x
  3. Step 3: Cross multiply
    87,977.22x = 121,245.74 × 62,484.70
  4. Step 4: Simplify right side
    87,977.22x = 7,576,003,690.18
  5. Step 5: Solve for x
    x = 7,576,003,690.18/87,977.22
  6. Step 6: Final answer
    x = 86,113.24

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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.