Home / 68,121.56-94,009.98-42,619.76

Finding the Fourth Proportional to 68,121.56, 94,009.98 and 42,619.76

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Solution

The fourth proportional to 68,121.56, 94,009.98 and 42,619.76 is: 58,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,121.56 : 94,009.98 = 42,619.76 : x
  2. Step 2: Convert to fraction form
    68,121.56/94,009.98 = 42,619.76/x
  3. Step 3: Cross multiply
    68,121.56x = 94,009.98 × 42,619.76
  4. Step 4: Simplify right side
    68,121.56x = 4,006,682,785.20
  5. Step 5: Solve for x
    x = 4,006,682,785.20/68,121.56
  6. Step 6: Final answer
    x = 58,816.66

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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.