Home / 98,989.35-136,612.54-56,546.97

Finding the Fourth Proportional to 98,989.35, 136,612.54 and 56,546.97

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Solution

The fourth proportional to 98,989.35, 136,612.54 and 56,546.97 is: 78,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,989.35 : 136,612.54 = 56,546.97 : x
  2. Step 2: Convert to fraction form
    98,989.35/136,612.54 = 56,546.97/x
  3. Step 3: Cross multiply
    98,989.35x = 136,612.54 × 56,546.97
  4. Step 4: Simplify right side
    98,989.35x = 7,725,025,201.00
  5. Step 5: Solve for x
    x = 7,725,025,201.00/98,989.35
  6. Step 6: Final answer
    x = 78,038.95

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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.