Home / 69,009.05-103,381.58-57,835.88

Finding the Fourth Proportional to 69,009.05, 103,381.58 and 57,835.88

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Solution

The fourth proportional to 69,009.05, 103,381.58 and 57,835.88 is: 86,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,009.05 : 103,381.58 = 57,835.88 : x
  2. Step 2: Convert to fraction form
    69,009.05/103,381.58 = 57,835.88/x
  3. Step 3: Cross multiply
    69,009.05x = 103,381.58 × 57,835.88
  4. Step 4: Simplify right side
    69,009.05x = 5,979,163,849.00
  5. Step 5: Solve for x
    x = 5,979,163,849.00/69,009.05
  6. Step 6: Final answer
    x = 86,643.19

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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.