Home / 85,064.75-117,381.69-49,257.17

Finding the Fourth Proportional to 85,064.75, 117,381.69 and 49,257.17

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Solution

The fourth proportional to 85,064.75, 117,381.69 and 49,257.17 is: 67,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.75 : 117,381.69 = 49,257.17 : x
  2. Step 2: Convert to fraction form
    85,064.75/117,381.69 = 49,257.17/x
  3. Step 3: Cross multiply
    85,064.75x = 117,381.69 × 49,257.17
  4. Step 4: Simplify right side
    85,064.75x = 5,781,889,859.22
  5. Step 5: Solve for x
    x = 5,781,889,859.22/85,064.75
  6. Step 6: Final answer
    x = 67,970.46

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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.