Home / 56,310.01-77,708.51-31,161.85

Finding the Fourth Proportional to 56,310.01, 77,708.51 and 31,161.85

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Solution

The fourth proportional to 56,310.01, 77,708.51 and 31,161.85 is: 43,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,310.01 : 77,708.51 = 31,161.85 : x
  2. Step 2: Convert to fraction form
    56,310.01/77,708.51 = 31,161.85/x
  3. Step 3: Cross multiply
    56,310.01x = 77,708.51 × 31,161.85
  4. Step 4: Simplify right side
    56,310.01x = 2,421,540,776.53
  5. Step 5: Solve for x
    x = 2,421,540,776.53/56,310.01
  6. Step 6: Final answer
    x = 43,003.74

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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.