Home / 66,727.59-99,987.71-42,051.75

Finding the Fourth Proportional to 66,727.59, 99,987.71 and 42,051.75

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Solution

The fourth proportional to 66,727.59, 99,987.71 and 42,051.75 is: 63,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727.59 : 99,987.71 = 42,051.75 : x
  2. Step 2: Convert to fraction form
    66,727.59/99,987.71 = 42,051.75/x
  3. Step 3: Cross multiply
    66,727.59x = 99,987.71 × 42,051.75
  4. Step 4: Simplify right side
    66,727.59x = 4,204,657,973.73
  5. Step 5: Solve for x
    x = 4,204,657,973.73/66,727.59
  6. Step 6: Final answer
    x = 63,012.29

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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.