Home / 77,788.04-107,492.82-63,635.72

Finding the Fourth Proportional to 77,788.04, 107,492.82 and 63,635.72

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Solution

The fourth proportional to 77,788.04, 107,492.82 and 63,635.72 is: 87,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,788.04 : 107,492.82 = 63,635.72 : x
  2. Step 2: Convert to fraction form
    77,788.04/107,492.82 = 63,635.72/x
  3. Step 3: Cross multiply
    77,788.04x = 107,492.82 × 63,635.72
  4. Step 4: Simplify right side
    77,788.04x = 6,840,382,995.53
  5. Step 5: Solve for x
    x = 6,840,382,995.53/77,788.04
  6. Step 6: Final answer
    x = 87,936.18

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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.