Home / 81,244.78-121,822.52-25,069.57

Finding the Fourth Proportional to 81,244.78, 121,822.52 and 25,069.57

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Solution

The fourth proportional to 81,244.78, 121,822.52 and 25,069.57 is: 37,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,244.78 : 121,822.52 = 25,069.57 : x
  2. Step 2: Convert to fraction form
    81,244.78/121,822.52 = 25,069.57/x
  3. Step 3: Cross multiply
    81,244.78x = 121,822.52 × 25,069.57
  4. Step 4: Simplify right side
    81,244.78x = 3,054,037,762.81
  5. Step 5: Solve for x
    x = 3,054,037,762.81/81,244.78
  6. Step 6: Final answer
    x = 37,590.57

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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.