Home / 334,439.50-501,657.42-81,721.39

Finding the Fourth Proportional to 334,439.50, 501,657.42 and 81,721.39

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Solution

The fourth proportional to 334,439.50, 501,657.42 and 81,721.39 is: 122,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,439.50 : 501,657.42 = 81,721.39 : x
  2. Step 2: Convert to fraction form
    334,439.50/501,657.42 = 81,721.39/x
  3. Step 3: Cross multiply
    334,439.50x = 501,657.42 × 81,721.39
  4. Step 4: Simplify right side
    334,439.50x = 40,996,141,666.21
  5. Step 5: Solve for x
    x = 40,996,141,666.21/334,439.50
  6. Step 6: Final answer
    x = 122,581.64

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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.