Home / 40,129.08-55,363.26-25,989.72

Finding the Fourth Proportional to 40,129.08, 55,363.26 and 25,989.72

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Solution

The fourth proportional to 40,129.08, 55,363.26 and 25,989.72 is: 35,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.08 : 55,363.26 = 25,989.72 : x
  2. Step 2: Convert to fraction form
    40,129.08/55,363.26 = 25,989.72/x
  3. Step 3: Cross multiply
    40,129.08x = 55,363.26 × 25,989.72
  4. Step 4: Simplify right side
    40,129.08x = 1,438,875,625.69
  5. Step 5: Solve for x
    x = 1,438,875,625.69/40,129.08
  6. Step 6: Final answer
    x = 35,856.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.