Home / 43,065.47-64,599.42-11,900.72

Finding the Fourth Proportional to 43,065.47, 64,599.42 and 11,900.72

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Solution

The fourth proportional to 43,065.47, 64,599.42 and 11,900.72 is: 17,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,065.47 : 64,599.42 = 11,900.72 : x
  2. Step 2: Convert to fraction form
    43,065.47/64,599.42 = 11,900.72/x
  3. Step 3: Cross multiply
    43,065.47x = 64,599.42 × 11,900.72
  4. Step 4: Simplify right side
    43,065.47x = 768,779,286.59
  5. Step 5: Solve for x
    x = 768,779,286.59/43,065.47
  6. Step 6: Final answer
    x = 17,851.41

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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.