Home / 65,627.92-90,564.13-40,124.77

Finding the Fourth Proportional to 65,627.92, 90,564.13 and 40,124.77

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Solution

The fourth proportional to 65,627.92, 90,564.13 and 40,124.77 is: 55,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,627.92 : 90,564.13 = 40,124.77 : x
  2. Step 2: Convert to fraction form
    65,627.92/90,564.13 = 40,124.77/x
  3. Step 3: Cross multiply
    65,627.92x = 90,564.13 × 40,124.77
  4. Step 4: Simplify right side
    65,627.92x = 3,633,864,484.54
  5. Step 5: Solve for x
    x = 3,633,864,484.54/65,627.92
  6. Step 6: Final answer
    x = 55,370.71

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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.