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Finding the Fourth Proportional to 101,359.55, 139,872.02 and 56,034.59

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Solution

The fourth proportional to 101,359.55, 139,872.02 and 56,034.59 is: 77,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,359.55 : 139,872.02 = 56,034.59 : x
  2. Step 2: Convert to fraction form
    101,359.55/139,872.02 = 56,034.59/x
  3. Step 3: Cross multiply
    101,359.55x = 139,872.02 × 56,034.59
  4. Step 4: Simplify right side
    101,359.55x = 7,837,670,313.64
  5. Step 5: Solve for x
    x = 7,837,670,313.64/101,359.55
  6. Step 6: Final answer
    x = 77,325.42

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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.