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Finding the Fourth Proportional to 71,070.94, 98,077.84 and 39,240.04

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Solution

The fourth proportional to 71,070.94, 98,077.84 and 39,240.04 is: 54,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,070.94 : 98,077.84 = 39,240.04 : x
  2. Step 2: Convert to fraction form
    71,070.94/98,077.84 = 39,240.04/x
  3. Step 3: Cross multiply
    71,070.94x = 98,077.84 × 39,240.04
  4. Step 4: Simplify right side
    71,070.94x = 3,848,577,678.12
  5. Step 5: Solve for x
    x = 3,848,577,678.12/71,070.94
  6. Step 6: Final answer
    x = 54,151.21

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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.