Home / 66,258.22-99,377.95-21,283.49

Finding the Fourth Proportional to 66,258.22, 99,377.95 and 21,283.49

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Solution

The fourth proportional to 66,258.22, 99,377.95 and 21,283.49 is: 31,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.22 : 99,377.95 = 21,283.49 : x
  2. Step 2: Convert to fraction form
    66,258.22/99,377.95 = 21,283.49/x
  3. Step 3: Cross multiply
    66,258.22x = 99,377.95 × 21,283.49
  4. Step 4: Simplify right side
    66,258.22x = 2,115,109,605.05
  5. Step 5: Solve for x
    x = 2,115,109,605.05/66,258.22
  6. Step 6: Final answer
    x = 31,922.22

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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.