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Finding the Fourth Proportional to 68,340.20, 102,510.30 and 41,959.40

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Solution

The fourth proportional to 68,340.20, 102,510.30 and 41,959.40 is: 62,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,340.20 : 102,510.30 = 41,959.40 : x
  2. Step 2: Convert to fraction form
    68,340.20/102,510.30 = 41,959.40/x
  3. Step 3: Cross multiply
    68,340.20x = 102,510.30 × 41,959.40
  4. Step 4: Simplify right side
    68,340.20x = 4,301,270,681.82
  5. Step 5: Solve for x
    x = 4,301,270,681.82/68,340.20
  6. Step 6: Final answer
    x = 62,939.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.