Home / 77,855.28-107,429.52-43,858.08

Finding the Fourth Proportional to 77,855.28, 107,429.52 and 43,858.08

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Solution

The fourth proportional to 77,855.28, 107,429.52 and 43,858.08 is: 60,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,855.28 : 107,429.52 = 43,858.08 : x
  2. Step 2: Convert to fraction form
    77,855.28/107,429.52 = 43,858.08/x
  3. Step 3: Cross multiply
    77,855.28x = 107,429.52 × 43,858.08
  4. Step 4: Simplify right side
    77,855.28x = 4,711,652,482.52
  5. Step 5: Solve for x
    x = 4,711,652,482.52/77,855.28
  6. Step 6: Final answer
    x = 60,518.09

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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.