Home / 90,791.34-136,208.88-28,461.84

Finding the Fourth Proportional to 90,791.34, 136,208.88 and 28,461.84

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Solution

The fourth proportional to 90,791.34, 136,208.88 and 28,461.84 is: 42,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,791.34 : 136,208.88 = 28,461.84 : x
  2. Step 2: Convert to fraction form
    90,791.34/136,208.88 = 28,461.84/x
  3. Step 3: Cross multiply
    90,791.34x = 136,208.88 × 28,461.84
  4. Step 4: Simplify right side
    90,791.34x = 3,876,755,349.14
  5. Step 5: Solve for x
    x = 3,876,755,349.14/90,791.34
  6. Step 6: Final answer
    x = 42,699.62

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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.