Home / 87,038.96-120,113.69-49,313.21

Finding the Fourth Proportional to 87,038.96, 120,113.69 and 49,313.21

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Solution

The fourth proportional to 87,038.96, 120,113.69 and 49,313.21 is: 68,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,038.96 : 120,113.69 = 49,313.21 : x
  2. Step 2: Convert to fraction form
    87,038.96/120,113.69 = 49,313.21/x
  3. Step 3: Cross multiply
    87,038.96x = 120,113.69 × 49,313.21
  4. Step 4: Simplify right side
    87,038.96x = 5,923,190,771.71
  5. Step 5: Solve for x
    x = 5,923,190,771.71/87,038.96
  6. Step 6: Final answer
    x = 68,052.18

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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.