Home / 62,378.71-86,192.40-54,407.09

Finding the Fourth Proportional to 62,378.71, 86,192.40 and 54,407.09

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Solution

The fourth proportional to 62,378.71, 86,192.40 and 54,407.09 is: 75,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,378.71 : 86,192.40 = 54,407.09 : x
  2. Step 2: Convert to fraction form
    62,378.71/86,192.40 = 54,407.09/x
  3. Step 3: Cross multiply
    62,378.71x = 86,192.40 × 54,407.09
  4. Step 4: Simplify right side
    62,378.71x = 4,689,478,083.62
  5. Step 5: Solve for x
    x = 4,689,478,083.62/62,378.71
  6. Step 6: Final answer
    x = 75,177.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.