Home / 86,664.30-129,996.45-53,276.10

Finding the Fourth Proportional to 86,664.30, 129,996.45 and 53,276.10

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Solution

The fourth proportional to 86,664.30, 129,996.45 and 53,276.10 is: 79,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.30 : 129,996.45 = 53,276.10 : x
  2. Step 2: Convert to fraction form
    86,664.30/129,996.45 = 53,276.10/x
  3. Step 3: Cross multiply
    86,664.30x = 129,996.45 × 53,276.10
  4. Step 4: Simplify right side
    86,664.30x = 6,925,703,869.85
  5. Step 5: Solve for x
    x = 6,925,703,869.85/86,664.30
  6. Step 6: Final answer
    x = 79,914.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.