Home / 66,101.74-99,131.58-21,718.26

Finding the Fourth Proportional to 66,101.74, 99,131.58 and 21,718.26

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Solution

The fourth proportional to 66,101.74, 99,131.58 and 21,718.26 is: 32,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.74 : 99,131.58 = 21,718.26 : x
  2. Step 2: Convert to fraction form
    66,101.74/99,131.58 = 21,718.26/x
  3. Step 3: Cross multiply
    66,101.74x = 99,131.58 × 21,718.26
  4. Step 4: Simplify right side
    66,101.74x = 2,152,965,428.65
  5. Step 5: Solve for x
    x = 2,152,965,428.65/66,101.74
  6. Step 6: Final answer
    x = 32,570.48

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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.