Home / 90,838.13-136,262.05-28,513.49

Finding the Fourth Proportional to 90,838.13, 136,262.05 and 28,513.49

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Solution

The fourth proportional to 90,838.13, 136,262.05 and 28,513.49 is: 42,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,838.13 : 136,262.05 = 28,513.49 : x
  2. Step 2: Convert to fraction form
    90,838.13/136,262.05 = 28,513.49/x
  3. Step 3: Cross multiply
    90,838.13x = 136,262.05 × 28,513.49
  4. Step 4: Simplify right side
    90,838.13x = 3,885,305,847.46
  5. Step 5: Solve for x
    x = 3,885,305,847.46/90,838.13
  6. Step 6: Final answer
    x = 42,771.75

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1.5x scale

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.