Home / 65,480.35-90,360.48-40,029.34

Finding the Fourth Proportional to 65,480.35, 90,360.48 and 40,029.34

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Solution

The fourth proportional to 65,480.35, 90,360.48 and 40,029.34 is: 55,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,480.35 : 90,360.48 = 40,029.34 : x
  2. Step 2: Convert to fraction form
    65,480.35/90,360.48 = 40,029.34/x
  3. Step 3: Cross multiply
    65,480.35x = 90,360.48 × 40,029.34
  4. Step 4: Simplify right side
    65,480.35x = 3,617,070,376.48
  5. Step 5: Solve for x
    x = 3,617,070,376.48/65,480.35
  6. Step 6: Final answer
    x = 55,239.02

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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.