Home / 98,813.54-136,328.61-55,787.66

Finding the Fourth Proportional to 98,813.54, 136,328.61 and 55,787.66

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Solution

The fourth proportional to 98,813.54, 136,328.61 and 55,787.66 is: 76,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,813.54 : 136,328.61 = 55,787.66 : x
  2. Step 2: Convert to fraction form
    98,813.54/136,328.61 = 55,787.66/x
  3. Step 3: Cross multiply
    98,813.54x = 136,328.61 × 55,787.66
  4. Step 4: Simplify right side
    98,813.54x = 7,605,454,142.95
  5. Step 5: Solve for x
    x = 7,605,454,142.95/98,813.54
  6. Step 6: Final answer
    x = 76,967.73

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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.