Home / 77,566.30-107,054.20-64,625.06

Finding the Fourth Proportional to 77,566.30, 107,054.20 and 64,625.06

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Solution

The fourth proportional to 77,566.30, 107,054.20 and 64,625.06 is: 89,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,566.30 : 107,054.20 = 64,625.06 : x
  2. Step 2: Convert to fraction form
    77,566.30/107,054.20 = 64,625.06/x
  3. Step 3: Cross multiply
    77,566.30x = 107,054.20 × 64,625.06
  4. Step 4: Simplify right side
    77,566.30x = 6,918,384,446.67
  5. Step 5: Solve for x
    x = 6,918,384,446.67/77,566.30
  6. Step 6: Final answer
    x = 89,193.18

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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.