Home / 65,259.15-90,049.59-39,756.26

Finding the Fourth Proportional to 65,259.15, 90,049.59 and 39,756.26

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Solution

The fourth proportional to 65,259.15, 90,049.59 and 39,756.26 is: 54,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,259.15 : 90,049.59 = 39,756.26 : x
  2. Step 2: Convert to fraction form
    65,259.15/90,049.59 = 39,756.26/x
  3. Step 3: Cross multiply
    65,259.15x = 90,049.59 × 39,756.26
  4. Step 4: Simplify right side
    65,259.15x = 3,580,035,138.06
  5. Step 5: Solve for x
    x = 3,580,035,138.06/65,259.15
  6. Step 6: Final answer
    x = 54,858.75

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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.