Home / 68,722.47-94,835.79-38,507.70

Finding the Fourth Proportional to 68,722.47, 94,835.79 and 38,507.70

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Solution

The fourth proportional to 68,722.47, 94,835.79 and 38,507.70 is: 53,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722.47 : 94,835.79 = 38,507.70 : x
  2. Step 2: Convert to fraction form
    68,722.47/94,835.79 = 38,507.70/x
  3. Step 3: Cross multiply
    68,722.47x = 94,835.79 × 38,507.70
  4. Step 4: Simplify right side
    68,722.47x = 3,651,908,150.58
  5. Step 5: Solve for x
    x = 3,651,908,150.58/68,722.47
  6. Step 6: Final answer
    x = 53,139.94

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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.