Home / 85,822.16-118,410.08-49,520.75

Finding the Fourth Proportional to 85,822.16, 118,410.08 and 49,520.75

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Solution

The fourth proportional to 85,822.16, 118,410.08 and 49,520.75 is: 68,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,822.16 : 118,410.08 = 49,520.75 : x
  2. Step 2: Convert to fraction form
    85,822.16/118,410.08 = 49,520.75/x
  3. Step 3: Cross multiply
    85,822.16x = 118,410.08 × 49,520.75
  4. Step 4: Simplify right side
    85,822.16x = 5,863,755,129.51
  5. Step 5: Solve for x
    x = 5,863,755,129.51/85,822.16
  6. Step 6: Final answer
    x = 68,324.49

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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.