Home / 90,531.60-135,747.84-31,362.24

Finding the Fourth Proportional to 90,531.60, 135,747.84 and 31,362.24

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Solution

The fourth proportional to 90,531.60, 135,747.84 and 31,362.24 is: 47,026.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,531.60 : 135,747.84 = 31,362.24 : x
  2. Step 2: Convert to fraction form
    90,531.60/135,747.84 = 31,362.24/x
  3. Step 3: Cross multiply
    90,531.60x = 135,747.84 × 31,362.24
  4. Step 4: Simplify right side
    90,531.60x = 4,257,356,337.56
  5. Step 5: Solve for x
    x = 4,257,356,337.56/90,531.60
  6. Step 6: Final answer
    x = 47,026.19

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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.