Home / 87,037.60-120,107.68-49,312.16

Finding the Fourth Proportional to 87,037.60, 120,107.68 and 49,312.16

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Solution

The fourth proportional to 87,037.60, 120,107.68 and 49,312.16 is: 68,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,037.60 : 120,107.68 = 49,312.16 : x
  2. Step 2: Convert to fraction form
    87,037.60/120,107.68 = 49,312.16/x
  3. Step 3: Cross multiply
    87,037.60x = 120,107.68 × 49,312.16
  4. Step 4: Simplify right side
    87,037.60x = 5,922,769,133.39
  5. Step 5: Solve for x
    x = 5,922,769,133.39/87,037.60
  6. Step 6: Final answer
    x = 68,048.40

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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.