Home / 66,088.36-99,121.74-21,713.32

Finding the Fourth Proportional to 66,088.36, 99,121.74 and 21,713.32

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Solution

The fourth proportional to 66,088.36, 99,121.74 and 21,713.32 is: 32,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,088.36 : 99,121.74 = 21,713.32 : x
  2. Step 2: Convert to fraction form
    66,088.36/99,121.74 = 21,713.32/x
  3. Step 3: Cross multiply
    66,088.36x = 99,121.74 × 21,713.32
  4. Step 4: Simplify right side
    66,088.36x = 2,152,262,059.58
  5. Step 5: Solve for x
    x = 2,152,262,059.58/66,088.36
  6. Step 6: Final answer
    x = 32,566.43

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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.