Home / 85,242.15-117,628.07-49,426.11

Finding the Fourth Proportional to 85,242.15, 117,628.07 and 49,426.11

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Solution

The fourth proportional to 85,242.15, 117,628.07 and 49,426.11 is: 68,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.15 : 117,628.07 = 49,426.11 : x
  2. Step 2: Convert to fraction form
    85,242.15/117,628.07 = 49,426.11/x
  3. Step 3: Cross multiply
    85,242.15x = 117,628.07 × 49,426.11
  4. Step 4: Simplify right side
    85,242.15x = 5,813,897,679.78
  5. Step 5: Solve for x
    x = 5,813,897,679.78/85,242.15
  6. Step 6: Final answer
    x = 68,204.49

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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.