Home / 43,158.15-64,731.96-11,570.58

Finding the Fourth Proportional to 43,158.15, 64,731.96 and 11,570.58

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Solution

The fourth proportional to 43,158.15, 64,731.96 and 11,570.58 is: 17,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158.15 : 64,731.96 = 11,570.58 : x
  2. Step 2: Convert to fraction form
    43,158.15/64,731.96 = 11,570.58/x
  3. Step 3: Cross multiply
    43,158.15x = 64,731.96 × 11,570.58
  4. Step 4: Simplify right side
    43,158.15x = 748,986,321.74
  5. Step 5: Solve for x
    x = 748,986,321.74/43,158.15
  6. Step 6: Final answer
    x = 17,354.46

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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.