Home / 56,295.44-77,688.84-31,145.36

Finding the Fourth Proportional to 56,295.44, 77,688.84 and 31,145.36

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Solution

The fourth proportional to 56,295.44, 77,688.84 and 31,145.36 is: 42,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,295.44 : 77,688.84 = 31,145.36 : x
  2. Step 2: Convert to fraction form
    56,295.44/77,688.84 = 31,145.36/x
  3. Step 3: Cross multiply
    56,295.44x = 77,688.84 × 31,145.36
  4. Step 4: Simplify right side
    56,295.44x = 2,419,646,889.78
  5. Step 5: Solve for x
    x = 2,419,646,889.78/56,295.44
  6. Step 6: Final answer
    x = 42,981.22

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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.