Home / 62,389.36-86,107.06-39,738.12

Finding the Fourth Proportional to 62,389.36, 86,107.06 and 39,738.12

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Solution

The fourth proportional to 62,389.36, 86,107.06 and 39,738.12 is: 54,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,389.36 : 86,107.06 = 39,738.12 : x
  2. Step 2: Convert to fraction form
    62,389.36/86,107.06 = 39,738.12/x
  3. Step 3: Cross multiply
    62,389.36x = 86,107.06 × 39,738.12
  4. Step 4: Simplify right side
    62,389.36x = 3,421,732,683.13
  5. Step 5: Solve for x
    x = 3,421,732,683.13/62,389.36
  6. Step 6: Final answer
    x = 54,844.81

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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.