Home / 90,221.72-124,506.22-49,938.26

Finding the Fourth Proportional to 90,221.72, 124,506.22 and 49,938.26

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Solution

The fourth proportional to 90,221.72, 124,506.22 and 49,938.26 is: 68,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221.72 : 124,506.22 = 49,938.26 : x
  2. Step 2: Convert to fraction form
    90,221.72/124,506.22 = 49,938.26/x
  3. Step 3: Cross multiply
    90,221.72x = 124,506.22 × 49,938.26
  4. Step 4: Simplify right side
    90,221.72x = 6,217,623,985.98
  5. Step 5: Solve for x
    x = 6,217,623,985.98/90,221.72
  6. Step 6: Final answer
    x = 68,914.94

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1.5x scale

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.