Home / 66,272.07-99,415.02-21,282.06

Finding the Fourth Proportional to 66,272.07, 99,415.02 and 21,282.06

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Solution

The fourth proportional to 66,272.07, 99,415.02 and 21,282.06 is: 31,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,272.07 : 99,415.02 = 21,282.06 : x
  2. Step 2: Convert to fraction form
    66,272.07/99,415.02 = 21,282.06/x
  3. Step 3: Cross multiply
    66,272.07x = 99,415.02 × 21,282.06
  4. Step 4: Simplify right side
    66,272.07x = 2,115,756,753.44
  5. Step 5: Solve for x
    x = 2,115,756,753.44/66,272.07
  6. Step 6: Final answer
    x = 31,925.31

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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.