Home / 85,220.50-117,597.31-49,412.69

Finding the Fourth Proportional to 85,220.50, 117,597.31 and 49,412.69

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Solution

The fourth proportional to 85,220.50, 117,597.31 and 49,412.69 is: 68,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.50 : 117,597.31 = 49,412.69 : x
  2. Step 2: Convert to fraction form
    85,220.50/117,597.31 = 49,412.69/x
  3. Step 3: Cross multiply
    85,220.50x = 117,597.31 × 49,412.69
  4. Step 4: Simplify right side
    85,220.50x = 5,810,799,423.86
  5. Step 5: Solve for x
    x = 5,810,799,423.86/85,220.50
  6. Step 6: Final answer
    x = 68,185.47

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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.