Home / 90,892.70-125,399.44-52,631.36

Finding the Fourth Proportional to 90,892.70, 125,399.44 and 52,631.36

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Solution

The fourth proportional to 90,892.70, 125,399.44 and 52,631.36 is: 72,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,892.70 : 125,399.44 = 52,631.36 : x
  2. Step 2: Convert to fraction form
    90,892.70/125,399.44 = 52,631.36/x
  3. Step 3: Cross multiply
    90,892.70x = 125,399.44 × 52,631.36
  4. Step 4: Simplify right side
    90,892.70x = 6,599,943,070.44
  5. Step 5: Solve for x
    x = 6,599,943,070.44/90,892.70
  6. Step 6: Final answer
    x = 72,612.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.