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Finding the Fourth Proportional to 62,424, 93,646.08 and 20,880.72

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Solution

The fourth proportional to 62,424, 93,646.08 and 20,880.72 is: 31,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,424 : 93,646.08 = 20,880.72 : x
  2. Step 2: Convert to fraction form
    62,424/93,646.08 = 20,880.72/x
  3. Step 3: Cross multiply
    62,424x = 93,646.08 × 20,880.72
  4. Step 4: Simplify right side
    62,424x = 1,955,397,575.58
  5. Step 5: Solve for x
    x = 1,955,397,575.58/62,424
  6. Step 6: Final answer
    x = 31,324.45

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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.