Home / 85,871.66-118,480.46-49,564.22

Finding the Fourth Proportional to 85,871.66, 118,480.46 and 49,564.22

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Solution

The fourth proportional to 85,871.66, 118,480.46 and 49,564.22 is: 68,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,871.66 : 118,480.46 = 49,564.22 : x
  2. Step 2: Convert to fraction form
    85,871.66/118,480.46 = 49,564.22/x
  3. Step 3: Cross multiply
    85,871.66x = 118,480.46 × 49,564.22
  4. Step 4: Simplify right side
    85,871.66x = 5,872,391,585.14
  5. Step 5: Solve for x
    x = 5,872,391,585.14/85,871.66
  6. Step 6: Final answer
    x = 68,385.68

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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.