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Finding the Fourth Proportional to 68,850, 94,998.36 and 40,545.36

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Solution

The fourth proportional to 68,850, 94,998.36 and 40,545.36 is: 55,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850 : 94,998.36 = 40,545.36 : x
  2. Step 2: Convert to fraction form
    68,850/94,998.36 = 40,545.36/x
  3. Step 3: Cross multiply
    68,850x = 94,998.36 × 40,545.36
  4. Step 4: Simplify right side
    68,850x = 3,851,742,705.61
  5. Step 5: Solve for x
    x = 3,851,742,705.61/68,850
  6. Step 6: Final answer
    x = 55,943.98

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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.