Home / 90,135.85-124,383.72-49,299.34

Finding the Fourth Proportional to 90,135.85, 124,383.72 and 49,299.34

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Solution

The fourth proportional to 90,135.85, 124,383.72 and 49,299.34 is: 68,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,135.85 : 124,383.72 = 49,299.34 : x
  2. Step 2: Convert to fraction form
    90,135.85/124,383.72 = 49,299.34/x
  3. Step 3: Cross multiply
    90,135.85x = 124,383.72 × 49,299.34
  4. Step 4: Simplify right side
    90,135.85x = 6,132,035,302.74
  5. Step 5: Solve for x
    x = 6,132,035,302.74/90,135.85
  6. Step 6: Final answer
    x = 68,031.04

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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.