Home / 66,111.44-99,174.20-21,117.06

Finding the Fourth Proportional to 66,111.44, 99,174.20 and 21,117.06

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Solution

The fourth proportional to 66,111.44, 99,174.20 and 21,117.06 is: 31,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,111.44 : 99,174.20 = 21,117.06 : x
  2. Step 2: Convert to fraction form
    66,111.44/99,174.20 = 21,117.06/x
  3. Step 3: Cross multiply
    66,111.44x = 99,174.20 × 21,117.06
  4. Step 4: Simplify right side
    66,111.44x = 2,094,267,426.27
  5. Step 5: Solve for x
    x = 2,094,267,426.27/66,111.44
  6. Step 6: Final answer
    x = 31,677.84

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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.