Home / 87,284.16-120,420-58,944.96

Finding the Fourth Proportional to 87,284.16, 120,420 and 58,944.96

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Solution

The fourth proportional to 87,284.16, 120,420 and 58,944.96 is: 81,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,284.16 : 120,420 = 58,944.96 : x
  2. Step 2: Convert to fraction form
    87,284.16/120,420 = 58,944.96/x
  3. Step 3: Cross multiply
    87,284.16x = 120,420 × 58,944.96
  4. Step 4: Simplify right side
    87,284.16x = 7,098,152,083.20
  5. Step 5: Solve for x
    x = 7,098,152,083.20/87,284.16
  6. Step 6: Final answer
    x = 81,322.34

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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.