Home / 90,036.37-135,090.93-40,082.35

Finding the Fourth Proportional to 90,036.37, 135,090.93 and 40,082.35

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Solution

The fourth proportional to 90,036.37, 135,090.93 and 40,082.35 is: 60,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,036.37 : 135,090.93 = 40,082.35 : x
  2. Step 2: Convert to fraction form
    90,036.37/135,090.93 = 40,082.35/x
  3. Step 3: Cross multiply
    90,036.37x = 135,090.93 × 40,082.35
  4. Step 4: Simplify right side
    90,036.37x = 5,414,761,938.09
  5. Step 5: Solve for x
    x = 5,414,761,938.09/90,036.37
  6. Step 6: Final answer
    x = 60,139.72

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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.