Home / 51,787.78-77,739.31-26,821.15

Finding the Fourth Proportional to 51,787.78, 77,739.31 and 26,821.15

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Solution

The fourth proportional to 51,787.78, 77,739.31 and 26,821.15 is: 40,261.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,787.78 : 77,739.31 = 26,821.15 : x
  2. Step 2: Convert to fraction form
    51,787.78/77,739.31 = 26,821.15/x
  3. Step 3: Cross multiply
    51,787.78x = 77,739.31 × 26,821.15
  4. Step 4: Simplify right side
    51,787.78x = 2,085,057,533.58
  5. Step 5: Solve for x
    x = 2,085,057,533.58/51,787.78
  6. Step 6: Final answer
    x = 40,261.58

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1.5x scale

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.