Home / 65,399.18-90,223.34-41,157.20

Finding the Fourth Proportional to 65,399.18, 90,223.34 and 41,157.20

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Solution

The fourth proportional to 65,399.18, 90,223.34 and 41,157.20 is: 56,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,399.18 : 90,223.34 = 41,157.20 : x
  2. Step 2: Convert to fraction form
    65,399.18/90,223.34 = 41,157.20/x
  3. Step 3: Cross multiply
    65,399.18x = 90,223.34 × 41,157.20
  4. Step 4: Simplify right side
    65,399.18x = 3,713,339,392.15
  5. Step 5: Solve for x
    x = 3,713,339,392.15/65,399.18
  6. Step 6: Final answer
    x = 56,779.61

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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.