Home / 83,604.36-125,401.82-61,138.02

Finding the Fourth Proportional to 83,604.36, 125,401.82 and 61,138.02

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Solution

The fourth proportional to 83,604.36, 125,401.82 and 61,138.02 is: 91,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,604.36 : 125,401.82 = 61,138.02 : x
  2. Step 2: Convert to fraction form
    83,604.36/125,401.82 = 61,138.02/x
  3. Step 3: Cross multiply
    83,604.36x = 125,401.82 × 61,138.02
  4. Step 4: Simplify right side
    83,604.36x = 7,666,818,673.51
  5. Step 5: Solve for x
    x = 7,666,818,673.51/83,604.36
  6. Step 6: Final answer
    x = 91,703.57

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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.