Home / 55,578.07-76,702.13-31,699.27

Finding the Fourth Proportional to 55,578.07, 76,702.13 and 31,699.27

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Solution

The fourth proportional to 55,578.07, 76,702.13 and 31,699.27 is: 43,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.07 : 76,702.13 = 31,699.27 : x
  2. Step 2: Convert to fraction form
    55,578.07/76,702.13 = 31,699.27/x
  3. Step 3: Cross multiply
    55,578.07x = 76,702.13 × 31,699.27
  4. Step 4: Simplify right side
    55,578.07x = 2,431,401,528.45
  5. Step 5: Solve for x
    x = 2,431,401,528.45/55,578.07
  6. Step 6: Final answer
    x = 43,747.50

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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.