Home / 56,135.43-77,461.38-30,983.31

Finding the Fourth Proportional to 56,135.43, 77,461.38 and 30,983.31

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Solution

The fourth proportional to 56,135.43, 77,461.38 and 30,983.31 is: 42,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.43 : 77,461.38 = 30,983.31 : x
  2. Step 2: Convert to fraction form
    56,135.43/77,461.38 = 30,983.31/x
  3. Step 3: Cross multiply
    56,135.43x = 77,461.38 × 30,983.31
  4. Step 4: Simplify right side
    56,135.43x = 2,400,009,949.57
  5. Step 5: Solve for x
    x = 2,400,009,949.57/56,135.43
  6. Step 6: Final answer
    x = 42,753.92

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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.