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Finding the Fourth Proportional to 62,470, 93,714.74 and 20,340.13

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Solution

The fourth proportional to 62,470, 93,714.74 and 20,340.13 is: 30,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,470 : 93,714.74 = 20,340.13 : x
  2. Step 2: Convert to fraction form
    62,470/93,714.74 = 20,340.13/x
  3. Step 3: Cross multiply
    62,470x = 93,714.74 × 20,340.13
  4. Step 4: Simplify right side
    62,470x = 1,906,169,994.52
  5. Step 5: Solve for x
    x = 1,906,169,994.52/62,470
  6. Step 6: Final answer
    x = 30,513.37

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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.