Home / 56,149.97-77,394.65-39,802.66

Finding the Fourth Proportional to 56,149.97, 77,394.65 and 39,802.66

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Solution

The fourth proportional to 56,149.97, 77,394.65 and 39,802.66 is: 54,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,149.97 : 77,394.65 = 39,802.66 : x
  2. Step 2: Convert to fraction form
    56,149.97/77,394.65 = 39,802.66/x
  3. Step 3: Cross multiply
    56,149.97x = 77,394.65 × 39,802.66
  4. Step 4: Simplify right side
    56,149.97x = 3,080,512,939.77
  5. Step 5: Solve for x
    x = 3,080,512,939.77/56,149.97
  6. Step 6: Final answer
    x = 54,862.24

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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.