Home / 90,340.56-135,594.12-45,999.28

Finding the Fourth Proportional to 90,340.56, 135,594.12 and 45,999.28

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Solution

The fourth proportional to 90,340.56, 135,594.12 and 45,999.28 is: 69,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,340.56 : 135,594.12 = 45,999.28 : x
  2. Step 2: Convert to fraction form
    90,340.56/135,594.12 = 45,999.28/x
  3. Step 3: Cross multiply
    90,340.56x = 135,594.12 × 45,999.28
  4. Step 4: Simplify right side
    90,340.56x = 6,237,231,892.23
  5. Step 5: Solve for x
    x = 6,237,231,892.23/90,340.56
  6. Step 6: Final answer
    x = 69,041.32

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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.