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Finding the Fourth Proportional to 71,393.40, 107,095.35 and 18,802.50

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Solution

The fourth proportional to 71,393.40, 107,095.35 and 18,802.50 is: 28,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,393.40 : 107,095.35 = 18,802.50 : x
  2. Step 2: Convert to fraction form
    71,393.40/107,095.35 = 18,802.50/x
  3. Step 3: Cross multiply
    71,393.40x = 107,095.35 × 18,802.50
  4. Step 4: Simplify right side
    71,393.40x = 2,013,660,318.38
  5. Step 5: Solve for x
    x = 2,013,660,318.38/71,393.40
  6. Step 6: Final answer
    x = 28,205.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.