Home / 90,006.96-134,933.88-54,971.22

Finding the Fourth Proportional to 90,006.96, 134,933.88 and 54,971.22

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Solution

The fourth proportional to 90,006.96, 134,933.88 and 54,971.22 is: 82,410.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,006.96 : 134,933.88 = 54,971.22 : x
  2. Step 2: Convert to fraction form
    90,006.96/134,933.88 = 54,971.22/x
  3. Step 3: Cross multiply
    90,006.96x = 134,933.88 × 54,971.22
  4. Step 4: Simplify right side
    90,006.96x = 7,417,480,002.93
  5. Step 5: Solve for x
    x = 7,417,480,002.93/90,006.96
  6. Step 6: Final answer
    x = 82,410.07

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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.