Home / 77,200.72-106,563.28-45,379.06

Finding the Fourth Proportional to 77,200.72, 106,563.28 and 45,379.06

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Solution

The fourth proportional to 77,200.72, 106,563.28 and 45,379.06 is: 62,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,200.72 : 106,563.28 = 45,379.06 : x
  2. Step 2: Convert to fraction form
    77,200.72/106,563.28 = 45,379.06/x
  3. Step 3: Cross multiply
    77,200.72x = 106,563.28 × 45,379.06
  4. Step 4: Simplify right side
    77,200.72x = 4,835,741,476.92
  5. Step 5: Solve for x
    x = 4,835,741,476.92/77,200.72
  6. Step 6: Final answer
    x = 62,638.55

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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.