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Finding the Fourth Proportional to 72,120.68, 108,034.14 and 58,841

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Solution

The fourth proportional to 72,120.68, 108,034.14 and 58,841 is: 88,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,120.68 : 108,034.14 = 58,841 : x
  2. Step 2: Convert to fraction form
    72,120.68/108,034.14 = 58,841/x
  3. Step 3: Cross multiply
    72,120.68x = 108,034.14 × 58,841
  4. Step 4: Simplify right side
    72,120.68x = 6,356,836,831.74
  5. Step 5: Solve for x
    x = 6,356,836,831.74/72,120.68
  6. Step 6: Final answer
    x = 88,141.67

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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.