Home / 66,549.11-99,828.45-20,952.90

Finding the Fourth Proportional to 66,549.11, 99,828.45 and 20,952.90

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Solution

The fourth proportional to 66,549.11, 99,828.45 and 20,952.90 is: 31,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549.11 : 99,828.45 = 20,952.90 : x
  2. Step 2: Convert to fraction form
    66,549.11/99,828.45 = 20,952.90/x
  3. Step 3: Cross multiply
    66,549.11x = 99,828.45 × 20,952.90
  4. Step 4: Simplify right side
    66,549.11x = 2,091,695,530.01
  5. Step 5: Solve for x
    x = 2,091,695,530.01/66,549.11
  6. Step 6: Final answer
    x = 31,430.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.