Home / 42,691.14-64,036.58-11,526.39

Finding the Fourth Proportional to 42,691.14, 64,036.58 and 11,526.39

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Solution

The fourth proportional to 42,691.14, 64,036.58 and 11,526.39 is: 17,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,691.14 : 64,036.58 = 11,526.39 : x
  2. Step 2: Convert to fraction form
    42,691.14/64,036.58 = 11,526.39/x
  3. Step 3: Cross multiply
    42,691.14x = 64,036.58 × 11,526.39
  4. Step 4: Simplify right side
    42,691.14x = 738,110,537.71
  5. Step 5: Solve for x
    x = 738,110,537.71/42,691.14
  6. Step 6: Final answer
    x = 17,289.55

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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.