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Finding the Fourth Proportional to 62,028.80, 93,064.80 and 26,979.20

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Solution

The fourth proportional to 62,028.80, 93,064.80 and 26,979.20 is: 40,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,028.80 : 93,064.80 = 26,979.20 : x
  2. Step 2: Convert to fraction form
    62,028.80/93,064.80 = 26,979.20/x
  3. Step 3: Cross multiply
    62,028.80x = 93,064.80 × 26,979.20
  4. Step 4: Simplify right side
    62,028.80x = 2,510,813,852.16
  5. Step 5: Solve for x
    x = 2,510,813,852.16/62,028.80
  6. Step 6: Final answer
    x = 40,478.19

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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.