Home / 81,541.12-112,453.12-52,831.68

Finding the Fourth Proportional to 81,541.12, 112,453.12 and 52,831.68

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Solution

The fourth proportional to 81,541.12, 112,453.12 and 52,831.68 is: 72,860.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,541.12 : 112,453.12 = 52,831.68 : x
  2. Step 2: Convert to fraction form
    81,541.12/112,453.12 = 52,831.68/x
  3. Step 3: Cross multiply
    81,541.12x = 112,453.12 × 52,831.68
  4. Step 4: Simplify right side
    81,541.12x = 5,941,087,250.84
  5. Step 5: Solve for x
    x = 5,941,087,250.84/81,541.12
  6. Step 6: Final answer
    x = 72,860.02

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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.