Home / 90,873.33-136,300.26-31,710.12

Finding the Fourth Proportional to 90,873.33, 136,300.26 and 31,710.12

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Solution

The fourth proportional to 90,873.33, 136,300.26 and 31,710.12 is: 47,561.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,873.33 : 136,300.26 = 31,710.12 : x
  2. Step 2: Convert to fraction form
    90,873.33/136,300.26 = 31,710.12/x
  3. Step 3: Cross multiply
    90,873.33x = 136,300.26 × 31,710.12
  4. Step 4: Simplify right side
    90,873.33x = 4,322,097,600.63
  5. Step 5: Solve for x
    x = 4,322,097,600.63/90,873.33
  6. Step 6: Final answer
    x = 47,561.78

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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.