Home / 99,963.06-137,926.80-57,521.59

Finding the Fourth Proportional to 99,963.06, 137,926.80 and 57,521.59

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Solution

The fourth proportional to 99,963.06, 137,926.80 and 57,521.59 is: 79,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,963.06 : 137,926.80 = 57,521.59 : x
  2. Step 2: Convert to fraction form
    99,963.06/137,926.80 = 57,521.59/x
  3. Step 3: Cross multiply
    99,963.06x = 137,926.80 × 57,521.59
  4. Step 4: Simplify right side
    99,963.06x = 7,933,769,270.63
  5. Step 5: Solve for x
    x = 7,933,769,270.63/99,963.06
  6. Step 6: Final answer
    x = 79,367.01

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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.