Home / 80,905.68-121,358.56-25,506

Finding the Fourth Proportional to 80,905.68, 121,358.56 and 25,506

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Solution

The fourth proportional to 80,905.68, 121,358.56 and 25,506 is: 38,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,905.68 : 121,358.56 = 25,506 : x
  2. Step 2: Convert to fraction form
    80,905.68/121,358.56 = 25,506/x
  3. Step 3: Cross multiply
    80,905.68x = 121,358.56 × 25,506
  4. Step 4: Simplify right side
    80,905.68x = 3,095,371,431.36
  5. Step 5: Solve for x
    x = 3,095,371,431.36/80,905.68
  6. Step 6: Final answer
    x = 38,259.01

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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.