Home / 99,877.88-137,835.52-57,436.41

Finding the Fourth Proportional to 99,877.88, 137,835.52 and 57,436.41

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Solution

The fourth proportional to 99,877.88, 137,835.52 and 57,436.41 is: 79,264.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,877.88 : 137,835.52 = 57,436.41 : x
  2. Step 2: Convert to fraction form
    99,877.88/137,835.52 = 57,436.41/x
  3. Step 3: Cross multiply
    99,877.88x = 137,835.52 × 57,436.41
  4. Step 4: Simplify right side
    99,877.88x = 7,916,777,360.33
  5. Step 5: Solve for x
    x = 7,916,777,360.33/99,877.88
  6. Step 6: Final answer
    x = 79,264.57

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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.