Home / 55,113.62-76,058.39-31,239.47

Finding the Fourth Proportional to 55,113.62, 76,058.39 and 31,239.47

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Solution

The fourth proportional to 55,113.62, 76,058.39 and 31,239.47 is: 43,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.62 : 76,058.39 = 31,239.47 : x
  2. Step 2: Convert to fraction form
    55,113.62/76,058.39 = 31,239.47/x
  3. Step 3: Cross multiply
    55,113.62x = 76,058.39 × 31,239.47
  4. Step 4: Simplify right side
    55,113.62x = 2,376,024,060.90
  5. Step 5: Solve for x
    x = 2,376,024,060.90/55,113.62
  6. Step 6: Final answer
    x = 43,111.38

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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.