Home / 56,195.68-84,305.85-21,135.34

Finding the Fourth Proportional to 56,195.68, 84,305.85 and 21,135.34

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Solution

The fourth proportional to 56,195.68, 84,305.85 and 21,135.34 is: 31,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,195.68 : 84,305.85 = 21,135.34 : x
  2. Step 2: Convert to fraction form
    56,195.68/84,305.85 = 21,135.34/x
  3. Step 3: Cross multiply
    56,195.68x = 84,305.85 × 21,135.34
  4. Step 4: Simplify right side
    56,195.68x = 1,781,832,803.74
  5. Step 5: Solve for x
    x = 1,781,832,803.74/56,195.68
  6. Step 6: Final answer
    x = 31,707.65

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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.