Home / 65,359.30-90,188.43-36,675.21

Finding the Fourth Proportional to 65,359.30, 90,188.43 and 36,675.21

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Solution

The fourth proportional to 65,359.30, 90,188.43 and 36,675.21 is: 50,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,359.30 : 90,188.43 = 36,675.21 : x
  2. Step 2: Convert to fraction form
    65,359.30/90,188.43 = 36,675.21/x
  3. Step 3: Cross multiply
    65,359.30x = 90,188.43 × 36,675.21
  4. Step 4: Simplify right side
    65,359.30x = 3,307,679,609.82
  5. Step 5: Solve for x
    x = 3,307,679,609.82/65,359.30
  6. Step 6: Final answer
    x = 50,607.64

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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.