Home / 56,297.76-77,689.44-31,146.72

Finding the Fourth Proportional to 56,297.76, 77,689.44 and 31,146.72

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Solution

The fourth proportional to 56,297.76, 77,689.44 and 31,146.72 is: 42,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.76 : 77,689.44 = 31,146.72 : x
  2. Step 2: Convert to fraction form
    56,297.76/77,689.44 = 31,146.72/x
  3. Step 3: Cross multiply
    56,297.76x = 77,689.44 × 31,146.72
  4. Step 4: Simplify right side
    56,297.76x = 2,419,771,234.64
  5. Step 5: Solve for x
    x = 2,419,771,234.64/56,297.76
  6. Step 6: Final answer
    x = 42,981.66

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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.