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Finding the Fourth Proportional to 68,543.72, 94,552.34 and 39,860.24

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Solution

The fourth proportional to 68,543.72, 94,552.34 and 39,860.24 is: 54,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,543.72 : 94,552.34 = 39,860.24 : x
  2. Step 2: Convert to fraction form
    68,543.72/94,552.34 = 39,860.24/x
  3. Step 3: Cross multiply
    68,543.72x = 94,552.34 × 39,860.24
  4. Step 4: Simplify right side
    68,543.72x = 3,768,878,964.96
  5. Step 5: Solve for x
    x = 3,768,878,964.96/68,543.72
  6. Step 6: Final answer
    x = 54,985.04

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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.