Home / 77,112.61-106,384.08-50,245.31

Finding the Fourth Proportional to 77,112.61, 106,384.08 and 50,245.31

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Solution

The fourth proportional to 77,112.61, 106,384.08 and 50,245.31 is: 69,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,112.61 : 106,384.08 = 50,245.31 : x
  2. Step 2: Convert to fraction form
    77,112.61/106,384.08 = 50,245.31/x
  3. Step 3: Cross multiply
    77,112.61x = 106,384.08 × 50,245.31
  4. Step 4: Simplify right side
    77,112.61x = 5,345,301,533.04
  5. Step 5: Solve for x
    x = 5,345,301,533.04/77,112.61
  6. Step 6: Final answer
    x = 69,318.13

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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.