Home / 90,066.13-135,123.80-26,889.17

Finding the Fourth Proportional to 90,066.13, 135,123.80 and 26,889.17

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Solution

The fourth proportional to 90,066.13, 135,123.80 and 26,889.17 is: 40,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.13 : 135,123.80 = 26,889.17 : x
  2. Step 2: Convert to fraction form
    90,066.13/135,123.80 = 26,889.17/x
  3. Step 3: Cross multiply
    90,066.13x = 135,123.80 × 26,889.17
  4. Step 4: Simplify right side
    90,066.13x = 3,633,366,019.18
  5. Step 5: Solve for x
    x = 3,633,366,019.18/90,066.13
  6. Step 6: Final answer
    x = 40,341.09

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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.