Home / 90,601.12-135,903.30-38,006.20

Finding the Fourth Proportional to 90,601.12, 135,903.30 and 38,006.20

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Solution

The fourth proportional to 90,601.12, 135,903.30 and 38,006.20 is: 57,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,601.12 : 135,903.30 = 38,006.20 : x
  2. Step 2: Convert to fraction form
    90,601.12/135,903.30 = 38,006.20/x
  3. Step 3: Cross multiply
    90,601.12x = 135,903.30 × 38,006.20
  4. Step 4: Simplify right side
    90,601.12x = 5,165,168,000.46
  5. Step 5: Solve for x
    x = 5,165,168,000.46/90,601.12
  6. Step 6: Final answer
    x = 57,009.98

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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.