Home / 66,421.05-99,562.37-28,971.06

Finding the Fourth Proportional to 66,421.05, 99,562.37 and 28,971.06

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Solution

The fourth proportional to 66,421.05, 99,562.37 and 28,971.06 is: 43,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.05 : 99,562.37 = 28,971.06 : x
  2. Step 2: Convert to fraction form
    66,421.05/99,562.37 = 28,971.06/x
  3. Step 3: Cross multiply
    66,421.05x = 99,562.37 × 28,971.06
  4. Step 4: Simplify right side
    66,421.05x = 2,884,427,732.16
  5. Step 5: Solve for x
    x = 2,884,427,732.16/66,421.05
  6. Step 6: Final answer
    x = 43,426.41

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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.