Home / 90,209.76-135,271.92-27,005.52

Finding the Fourth Proportional to 90,209.76, 135,271.92 and 27,005.52

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Solution

The fourth proportional to 90,209.76, 135,271.92 and 27,005.52 is: 40,495.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.76 : 135,271.92 = 27,005.52 : x
  2. Step 2: Convert to fraction form
    90,209.76/135,271.92 = 27,005.52/x
  3. Step 3: Cross multiply
    90,209.76x = 135,271.92 × 27,005.52
  4. Step 4: Simplify right side
    90,209.76x = 3,653,088,541.00
  5. Step 5: Solve for x
    x = 3,653,088,541.00/90,209.76
  6. Step 6: Final answer
    x = 40,495.49

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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.