Home / 87,365.04-120,563.13-49,639.29

Finding the Fourth Proportional to 87,365.04, 120,563.13 and 49,639.29

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Solution

The fourth proportional to 87,365.04, 120,563.13 and 49,639.29 is: 68,501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,365.04 : 120,563.13 = 49,639.29 : x
  2. Step 2: Convert to fraction form
    87,365.04/120,563.13 = 49,639.29/x
  3. Step 3: Cross multiply
    87,365.04x = 120,563.13 × 49,639.29
  4. Step 4: Simplify right side
    87,365.04x = 5,984,668,173.38
  5. Step 5: Solve for x
    x = 5,984,668,173.38/87,365.04
  6. Step 6: Final answer
    x = 68,501.86

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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.