Home / 74,523.38-102,888.21-51,279.80

Finding the Fourth Proportional to 74,523.38, 102,888.21 and 51,279.80

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Solution

The fourth proportional to 74,523.38, 102,888.21 and 51,279.80 is: 70,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,523.38 : 102,888.21 = 51,279.80 : x
  2. Step 2: Convert to fraction form
    74,523.38/102,888.21 = 51,279.80/x
  3. Step 3: Cross multiply
    74,523.38x = 102,888.21 × 51,279.80
  4. Step 4: Simplify right side
    74,523.38x = 5,276,086,831.16
  5. Step 5: Solve for x
    x = 5,276,086,831.16/74,523.38
  6. Step 6: Final answer
    x = 70,797.74

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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.