Home / 56,149.69-77,394.25-39,802.39

Finding the Fourth Proportional to 56,149.69, 77,394.25 and 39,802.39

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Solution

The fourth proportional to 56,149.69, 77,394.25 and 39,802.39 is: 54,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,149.69 : 77,394.25 = 39,802.39 : x
  2. Step 2: Convert to fraction form
    56,149.69/77,394.25 = 39,802.39/x
  3. Step 3: Cross multiply
    56,149.69x = 77,394.25 × 39,802.39
  4. Step 4: Simplify right side
    56,149.69x = 3,080,476,122.26
  5. Step 5: Solve for x
    x = 3,080,476,122.26/56,149.69
  6. Step 6: Final answer
    x = 54,861.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.