Home / 81,253.02-121,894.78-36,882.89

Finding the Fourth Proportional to 81,253.02, 121,894.78 and 36,882.89

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Solution

The fourth proportional to 81,253.02, 121,894.78 and 36,882.89 is: 55,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.02 : 121,894.78 = 36,882.89 : x
  2. Step 2: Convert to fraction form
    81,253.02/121,894.78 = 36,882.89/x
  3. Step 3: Cross multiply
    81,253.02x = 121,894.78 × 36,882.89
  4. Step 4: Simplify right side
    81,253.02x = 4,495,831,762.31
  5. Step 5: Solve for x
    x = 4,495,831,762.31/81,253.02
  6. Step 6: Final answer
    x = 55,331.26

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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.