Home / 51,434.55-77,151.81-21,831.61

Finding the Fourth Proportional to 51,434.55, 77,151.81 and 21,831.61

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Solution

The fourth proportional to 51,434.55, 77,151.81 and 21,831.61 is: 32,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,434.55 : 77,151.81 = 21,831.61 : x
  2. Step 2: Convert to fraction form
    51,434.55/77,151.81 = 21,831.61/x
  3. Step 3: Cross multiply
    51,434.55x = 77,151.81 × 21,831.61
  4. Step 4: Simplify right side
    51,434.55x = 1,684,348,226.71
  5. Step 5: Solve for x
    x = 1,684,348,226.71/51,434.55
  6. Step 6: Final answer
    x = 32,747.41

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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.