Home / 77,805.36-107,380.08-45,982.08

Finding the Fourth Proportional to 77,805.36, 107,380.08 and 45,982.08

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Solution

The fourth proportional to 77,805.36, 107,380.08 and 45,982.08 is: 63,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,805.36 : 107,380.08 = 45,982.08 : x
  2. Step 2: Convert to fraction form
    77,805.36/107,380.08 = 45,982.08/x
  3. Step 3: Cross multiply
    77,805.36x = 107,380.08 × 45,982.08
  4. Step 4: Simplify right side
    77,805.36x = 4,937,559,428.97
  5. Step 5: Solve for x
    x = 4,937,559,428.97/77,805.36
  6. Step 6: Final answer
    x = 63,460.40

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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.