Home / 90,646.82-135,923.54-40,684.08

Finding the Fourth Proportional to 90,646.82, 135,923.54 and 40,684.08

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Solution

The fourth proportional to 90,646.82, 135,923.54 and 40,684.08 is: 61,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,646.82 : 135,923.54 = 40,684.08 : x
  2. Step 2: Convert to fraction form
    90,646.82/135,923.54 = 40,684.08/x
  3. Step 3: Cross multiply
    90,646.82x = 135,923.54 × 40,684.08
  4. Step 4: Simplify right side
    90,646.82x = 5,529,923,971.82
  5. Step 5: Solve for x
    x = 5,529,923,971.82/90,646.82
  6. Step 6: Final answer
    x = 61,005.17

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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.