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Finding the Fourth Proportional to 65,842.55, 90,862.06 and 35,627.21

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Solution

The fourth proportional to 65,842.55, 90,862.06 and 35,627.21 is: 49,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,842.55 : 90,862.06 = 35,627.21 : x
  2. Step 2: Convert to fraction form
    65,842.55/90,862.06 = 35,627.21/x
  3. Step 3: Cross multiply
    65,842.55x = 90,862.06 × 35,627.21
  4. Step 4: Simplify right side
    65,842.55x = 3,237,161,692.65
  5. Step 5: Solve for x
    x = 3,237,161,692.65/65,842.55
  6. Step 6: Final answer
    x = 49,165.19

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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.