Home / 90,913.23-136,369.94-27,730

Finding the Fourth Proportional to 90,913.23, 136,369.94 and 27,730

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Solution

The fourth proportional to 90,913.23, 136,369.94 and 27,730 is: 41,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.23 : 136,369.94 = 27,730 : x
  2. Step 2: Convert to fraction form
    90,913.23/136,369.94 = 27,730/x
  3. Step 3: Cross multiply
    90,913.23x = 136,369.94 × 27,730
  4. Step 4: Simplify right side
    90,913.23x = 3,781,538,436.20
  5. Step 5: Solve for x
    x = 3,781,538,436.20/90,913.23
  6. Step 6: Final answer
    x = 41,595.03

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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.