Home / 427,575.48-641,383.87-112,032.69

Finding the Fourth Proportional to 427,575.48, 641,383.87 and 112,032.69

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Solution

The fourth proportional to 427,575.48, 641,383.87 and 112,032.69 is: 168,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,575.48 : 641,383.87 = 112,032.69 : x
  2. Step 2: Convert to fraction form
    427,575.48/641,383.87 = 112,032.69/x
  3. Step 3: Cross multiply
    427,575.48x = 641,383.87 × 112,032.69
  4. Step 4: Simplify right side
    427,575.48x = 71,855,960,278.71
  5. Step 5: Solve for x
    x = 71,855,960,278.71/427,575.48
  6. Step 6: Final answer
    x = 168,054.45

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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.