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Finding the Fourth Proportional to 68,352, 94,329.41 and 40,066.80

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Solution

The fourth proportional to 68,352, 94,329.41 and 40,066.80 is: 55,294.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352 : 94,329.41 = 40,066.80 : x
  2. Step 2: Convert to fraction form
    68,352/94,329.41 = 40,066.80/x
  3. Step 3: Cross multiply
    68,352x = 94,329.41 × 40,066.80
  4. Step 4: Simplify right side
    68,352x = 3,779,477,404.25
  5. Step 5: Solve for x
    x = 3,779,477,404.25/68,352
  6. Step 6: Final answer
    x = 55,294.32

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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.