Home / 90,273.36-135,399.08-45,931.94

Finding the Fourth Proportional to 90,273.36, 135,399.08 and 45,931.94

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Solution

The fourth proportional to 90,273.36, 135,399.08 and 45,931.94 is: 68,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,273.36 : 135,399.08 = 45,931.94 : x
  2. Step 2: Convert to fraction form
    90,273.36/135,399.08 = 45,931.94/x
  3. Step 3: Cross multiply
    90,273.36x = 135,399.08 × 45,931.94
  4. Step 4: Simplify right side
    90,273.36x = 6,219,141,511.96
  5. Step 5: Solve for x
    x = 6,219,141,511.96/90,273.36
  6. Step 6: Final answer
    x = 68,892.32

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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.