Home / 65,567.06-90,487.29-40,078.25

Finding the Fourth Proportional to 65,567.06, 90,487.29 and 40,078.25

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Solution

The fourth proportional to 65,567.06, 90,487.29 and 40,078.25 is: 55,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,567.06 : 90,487.29 = 40,078.25 : x
  2. Step 2: Convert to fraction form
    65,567.06/90,487.29 = 40,078.25/x
  3. Step 3: Cross multiply
    65,567.06x = 90,487.29 × 40,078.25
  4. Step 4: Simplify right side
    65,567.06x = 3,626,572,230.44
  5. Step 5: Solve for x
    x = 3,626,572,230.44/65,567.06
  6. Step 6: Final answer
    x = 55,310.89

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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.