Home / 56,386.68-77,807.34-31,229.88

Finding the Fourth Proportional to 56,386.68, 77,807.34 and 31,229.88

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Solution

The fourth proportional to 56,386.68, 77,807.34 and 31,229.88 is: 43,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.68 : 77,807.34 = 31,229.88 : x
  2. Step 2: Convert to fraction form
    56,386.68/77,807.34 = 31,229.88/x
  3. Step 3: Cross multiply
    56,386.68x = 77,807.34 × 31,229.88
  4. Step 4: Simplify right side
    56,386.68x = 2,429,913,891.32
  5. Step 5: Solve for x
    x = 2,429,913,891.32/56,386.68
  6. Step 6: Final answer
    x = 43,093.76

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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.