Home / 55,643.10-76,787.70-30,149.52

Finding the Fourth Proportional to 55,643.10, 76,787.70 and 30,149.52

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Solution

The fourth proportional to 55,643.10, 76,787.70 and 30,149.52 is: 41,606.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.10 : 76,787.70 = 30,149.52 : x
  2. Step 2: Convert to fraction form
    55,643.10/76,787.70 = 30,149.52/x
  3. Step 3: Cross multiply
    55,643.10x = 76,787.70 × 30,149.52
  4. Step 4: Simplify right side
    55,643.10x = 2,315,112,296.90
  5. Step 5: Solve for x
    x = 2,315,112,296.90/55,643.10
  6. Step 6: Final answer
    x = 41,606.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.