Home / 66,186.15-99,257.88-21,802.35

Finding the Fourth Proportional to 66,186.15, 99,257.88 and 21,802.35

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Solution

The fourth proportional to 66,186.15, 99,257.88 and 21,802.35 is: 32,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.15 : 99,257.88 = 21,802.35 : x
  2. Step 2: Convert to fraction form
    66,186.15/99,257.88 = 21,802.35/x
  3. Step 3: Cross multiply
    66,186.15x = 99,257.88 × 21,802.35
  4. Step 4: Simplify right side
    66,186.15x = 2,164,055,040.02
  5. Step 5: Solve for x
    x = 2,164,055,040.02/66,186.15
  6. Step 6: Final answer
    x = 32,696.49

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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.