Home / 90,869.34-136,258.22-52,930.82

Finding the Fourth Proportional to 90,869.34, 136,258.22 and 52,930.82

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Solution

The fourth proportional to 90,869.34, 136,258.22 and 52,930.82 is: 79,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,869.34 : 136,258.22 = 52,930.82 : x
  2. Step 2: Convert to fraction form
    90,869.34/136,258.22 = 52,930.82/x
  3. Step 3: Cross multiply
    90,869.34x = 136,258.22 × 52,930.82
  4. Step 4: Simplify right side
    90,869.34x = 7,212,258,370.40
  5. Step 5: Solve for x
    x = 7,212,258,370.40/90,869.34
  6. Step 6: Final answer
    x = 79,369.55

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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.