Home / 77,305.72-106,896.63-61,362.49

Finding the Fourth Proportional to 77,305.72, 106,896.63 and 61,362.49

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Solution

The fourth proportional to 77,305.72, 106,896.63 and 61,362.49 is: 84,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305.72 : 106,896.63 = 61,362.49 : x
  2. Step 2: Convert to fraction form
    77,305.72/106,896.63 = 61,362.49/x
  3. Step 3: Cross multiply
    77,305.72x = 106,896.63 × 61,362.49
  4. Step 4: Simplify right side
    77,305.72x = 6,559,443,389.41
  5. Step 5: Solve for x
    x = 6,559,443,389.41/77,305.72
  6. Step 6: Final answer
    x = 84,850.69

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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.