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Finding the Fourth Proportional to 68,362.95, 94,315.95 and 42,519.80

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Solution

The fourth proportional to 68,362.95, 94,315.95 and 42,519.80 is: 58,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,362.95 : 94,315.95 = 42,519.80 : x
  2. Step 2: Convert to fraction form
    68,362.95/94,315.95 = 42,519.80/x
  3. Step 3: Cross multiply
    68,362.95x = 94,315.95 × 42,519.80
  4. Step 4: Simplify right side
    68,362.95x = 4,010,295,330.81
  5. Step 5: Solve for x
    x = 4,010,295,330.81/68,362.95
  6. Step 6: Final answer
    x = 58,661.82

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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.