Home / 77,813.17-107,381.01-43,821.75

Finding the Fourth Proportional to 77,813.17, 107,381.01 and 43,821.75

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Solution

The fourth proportional to 77,813.17, 107,381.01 and 43,821.75 is: 60,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.17 : 107,381.01 = 43,821.75 : x
  2. Step 2: Convert to fraction form
    77,813.17/107,381.01 = 43,821.75/x
  3. Step 3: Cross multiply
    77,813.17x = 107,381.01 × 43,821.75
  4. Step 4: Simplify right side
    77,813.17x = 4,705,623,238.06
  5. Step 5: Solve for x
    x = 4,705,623,238.06/77,813.17
  6. Step 6: Final answer
    x = 60,473.35

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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.