Home / 85,282.24-117,688.24-49,478.28

Finding the Fourth Proportional to 85,282.24, 117,688.24 and 49,478.28

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Solution

The fourth proportional to 85,282.24, 117,688.24 and 49,478.28 is: 68,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,282.24 : 117,688.24 = 49,478.28 : x
  2. Step 2: Convert to fraction form
    85,282.24/117,688.24 = 49,478.28/x
  3. Step 3: Cross multiply
    85,282.24x = 117,688.24 × 49,478.28
  4. Step 4: Simplify right side
    85,282.24x = 5,823,011,691.43
  5. Step 5: Solve for x
    x = 5,823,011,691.43/85,282.24
  6. Step 6: Final answer
    x = 68,279.30

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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.