Home / 65,918.16-90,972.69-37,243.11

Finding the Fourth Proportional to 65,918.16, 90,972.69 and 37,243.11

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Solution

The fourth proportional to 65,918.16, 90,972.69 and 37,243.11 is: 51,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,918.16 : 90,972.69 = 37,243.11 : x
  2. Step 2: Convert to fraction form
    65,918.16/90,972.69 = 37,243.11/x
  3. Step 3: Cross multiply
    65,918.16x = 90,972.69 × 37,243.11
  4. Step 4: Simplify right side
    65,918.16x = 3,388,106,102.15
  5. Step 5: Solve for x
    x = 3,388,106,102.15/65,918.16
  6. Step 6: Final answer
    x = 51,398.68

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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.