Home / 66,089.53-99,140.55-21,716.47

Finding the Fourth Proportional to 66,089.53, 99,140.55 and 21,716.47

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Solution

The fourth proportional to 66,089.53, 99,140.55 and 21,716.47 is: 32,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,089.53 : 99,140.55 = 21,716.47 : x
  2. Step 2: Convert to fraction form
    66,089.53/99,140.55 = 21,716.47/x
  3. Step 3: Cross multiply
    66,089.53x = 99,140.55 × 21,716.47
  4. Step 4: Simplify right side
    66,089.53x = 2,152,982,779.86
  5. Step 5: Solve for x
    x = 2,152,982,779.86/66,089.53
  6. Step 6: Final answer
    x = 32,576.76

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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.