Home / 68,715.11-94,825.19-38,501.70

Finding the Fourth Proportional to 68,715.11, 94,825.19 and 38,501.70

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Solution

The fourth proportional to 68,715.11, 94,825.19 and 38,501.70 is: 53,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.11 : 94,825.19 = 38,501.70 : x
  2. Step 2: Convert to fraction form
    68,715.11/94,825.19 = 38,501.70/x
  3. Step 3: Cross multiply
    68,715.11x = 94,825.19 × 38,501.70
  4. Step 4: Simplify right side
    68,715.11x = 3,650,931,017.82
  5. Step 5: Solve for x
    x = 3,650,931,017.82/68,715.11
  6. Step 6: Final answer
    x = 53,131.41

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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.