Home / 66,723.16-100,055.50-19,965.08

Finding the Fourth Proportional to 66,723.16, 100,055.50 and 19,965.08

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Solution

The fourth proportional to 66,723.16, 100,055.50 and 19,965.08 is: 29,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,723.16 : 100,055.50 = 19,965.08 : x
  2. Step 2: Convert to fraction form
    66,723.16/100,055.50 = 19,965.08/x
  3. Step 3: Cross multiply
    66,723.16x = 100,055.50 × 19,965.08
  4. Step 4: Simplify right side
    66,723.16x = 1,997,616,061.94
  5. Step 5: Solve for x
    x = 1,997,616,061.94/66,723.16
  6. Step 6: Final answer
    x = 29,938.87

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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.