Home / 55,220.48-82,648.56-39,179.36

Finding the Fourth Proportional to 55,220.48, 82,648.56 and 39,179.36

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Solution

The fourth proportional to 55,220.48, 82,648.56 and 39,179.36 is: 58,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,220.48 : 82,648.56 = 39,179.36 : x
  2. Step 2: Convert to fraction form
    55,220.48/82,648.56 = 39,179.36/x
  3. Step 3: Cross multiply
    55,220.48x = 82,648.56 × 39,179.36
  4. Step 4: Simplify right side
    55,220.48x = 3,238,117,685.72
  5. Step 5: Solve for x
    x = 3,238,117,685.72/55,220.48
  6. Step 6: Final answer
    x = 58,639.80

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1.5x scale

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.