Home / 98,813.29-136,328.26-55,787.41

Finding the Fourth Proportional to 98,813.29, 136,328.26 and 55,787.41

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Solution

The fourth proportional to 98,813.29, 136,328.26 and 55,787.41 is: 76,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,813.29 : 136,328.26 = 55,787.41 : x
  2. Step 2: Convert to fraction form
    98,813.29/136,328.26 = 55,787.41/x
  3. Step 3: Cross multiply
    98,813.29x = 136,328.26 × 55,787.41
  4. Step 4: Simplify right side
    98,813.29x = 7,605,400,535.21
  5. Step 5: Solve for x
    x = 7,605,400,535.21/98,813.29
  6. Step 6: Final answer
    x = 76,967.39

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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.