Home / 90,345.50-135,513.02-27,164.36

Finding the Fourth Proportional to 90,345.50, 135,513.02 and 27,164.36

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Solution

The fourth proportional to 90,345.50, 135,513.02 and 27,164.36 is: 40,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,345.50 : 135,513.02 = 27,164.36 : x
  2. Step 2: Convert to fraction form
    90,345.50/135,513.02 = 27,164.36/x
  3. Step 3: Cross multiply
    90,345.50x = 135,513.02 × 27,164.36
  4. Step 4: Simplify right side
    90,345.50x = 3,681,124,459.97
  5. Step 5: Solve for x
    x = 3,681,124,459.97/90,345.50
  6. Step 6: Final answer
    x = 40,744.97

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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.