Home / 109,311.13-163,966.69-30,427.41

Finding the Fourth Proportional to 109,311.13, 163,966.69 and 30,427.41

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Solution

The fourth proportional to 109,311.13, 163,966.69 and 30,427.41 is: 45,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,311.13 : 163,966.69 = 30,427.41 : x
  2. Step 2: Convert to fraction form
    109,311.13/163,966.69 = 30,427.41/x
  3. Step 3: Cross multiply
    109,311.13x = 163,966.69 × 30,427.41
  4. Step 4: Simplify right side
    109,311.13x = 4,989,081,702.97
  5. Step 5: Solve for x
    x = 4,989,081,702.97/109,311.13
  6. Step 6: Final answer
    x = 45,641.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.