Home / 83,868.75-125,637.03-54,307.35

Finding the Fourth Proportional to 83,868.75, 125,637.03 and 54,307.35

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Solution

The fourth proportional to 83,868.75, 125,637.03 and 54,307.35 is: 81,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.75 : 125,637.03 = 54,307.35 : x
  2. Step 2: Convert to fraction form
    83,868.75/125,637.03 = 54,307.35/x
  3. Step 3: Cross multiply
    83,868.75x = 125,637.03 × 54,307.35
  4. Step 4: Simplify right side
    83,868.75x = 6,823,014,161.17
  5. Step 5: Solve for x
    x = 6,823,014,161.17/83,868.75
  6. Step 6: Final answer
    x = 81,353.47

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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.