Home / 56,513.63-77,989.01-31,363.13

Finding the Fourth Proportional to 56,513.63, 77,989.01 and 31,363.13

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Solution

The fourth proportional to 56,513.63, 77,989.01 and 31,363.13 is: 43,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,513.63 : 77,989.01 = 31,363.13 : x
  2. Step 2: Convert to fraction form
    56,513.63/77,989.01 = 31,363.13/x
  3. Step 3: Cross multiply
    56,513.63x = 77,989.01 × 31,363.13
  4. Step 4: Simplify right side
    56,513.63x = 2,445,978,912.44
  5. Step 5: Solve for x
    x = 2,445,978,912.44/56,513.63
  6. Step 6: Final answer
    x = 43,281.22

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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.