Home / 90,941.44-136,412.43-31,777.12

Finding the Fourth Proportional to 90,941.44, 136,412.43 and 31,777.12

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Solution

The fourth proportional to 90,941.44, 136,412.43 and 31,777.12 is: 47,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,941.44 : 136,412.43 = 31,777.12 : x
  2. Step 2: Convert to fraction form
    90,941.44/136,412.43 = 31,777.12/x
  3. Step 3: Cross multiply
    90,941.44x = 136,412.43 × 31,777.12
  4. Step 4: Simplify right side
    90,941.44x = 4,334,794,157.60
  5. Step 5: Solve for x
    x = 4,334,794,157.60/90,941.44
  6. Step 6: Final answer
    x = 47,665.77

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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.