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Finding the Fourth Proportional to 71,208.76, 98,267.64 and 42,541.42

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Solution

The fourth proportional to 71,208.76, 98,267.64 and 42,541.42 is: 58,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.76 : 98,267.64 = 42,541.42 : x
  2. Step 2: Convert to fraction form
    71,208.76/98,267.64 = 42,541.42/x
  3. Step 3: Cross multiply
    71,208.76x = 98,267.64 × 42,541.42
  4. Step 4: Simplify right side
    71,208.76x = 4,180,444,945.65
  5. Step 5: Solve for x
    x = 4,180,444,945.65/71,208.76
  6. Step 6: Final answer
    x = 58,706.89

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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.