Home / 56,297.08-77,689.39-31,146.76

Finding the Fourth Proportional to 56,297.08, 77,689.39 and 31,146.76

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Solution

The fourth proportional to 56,297.08, 77,689.39 and 31,146.76 is: 42,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.08 : 77,689.39 = 31,146.76 : x
  2. Step 2: Convert to fraction form
    56,297.08/77,689.39 = 31,146.76/x
  3. Step 3: Cross multiply
    56,297.08x = 77,689.39 × 31,146.76
  4. Step 4: Simplify right side
    56,297.08x = 2,419,772,784.88
  5. Step 5: Solve for x
    x = 2,419,772,784.88/56,297.08
  6. Step 6: Final answer
    x = 42,982.21

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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.