Home / 42,788.49-64,084.78-26,111.80

Finding the Fourth Proportional to 42,788.49, 64,084.78 and 26,111.80

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Solution

The fourth proportional to 42,788.49, 64,084.78 and 26,111.80 is: 39,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,788.49 : 64,084.78 = 26,111.80 : x
  2. Step 2: Convert to fraction form
    42,788.49/64,084.78 = 26,111.80/x
  3. Step 3: Cross multiply
    42,788.49x = 64,084.78 × 26,111.80
  4. Step 4: Simplify right side
    42,788.49x = 1,673,368,958.40
  5. Step 5: Solve for x
    x = 1,673,368,958.40/42,788.49
  6. Step 6: Final answer
    x = 39,107.92

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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.