Home / 51,389.13-77,127.44-20,246.25

Finding the Fourth Proportional to 51,389.13, 77,127.44 and 20,246.25

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Solution

The fourth proportional to 51,389.13, 77,127.44 and 20,246.25 is: 30,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,389.13 : 77,127.44 = 20,246.25 : x
  2. Step 2: Convert to fraction form
    51,389.13/77,127.44 = 20,246.25/x
  3. Step 3: Cross multiply
    51,389.13x = 77,127.44 × 20,246.25
  4. Step 4: Simplify right side
    51,389.13x = 1,561,541,330.87
  5. Step 5: Solve for x
    x = 1,561,541,330.87/51,389.13
  6. Step 6: Final answer
    x = 30,386.61

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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.