Home / 56,466.18-77,921.37-31,318.02

Finding the Fourth Proportional to 56,466.18, 77,921.37 and 31,318.02

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Solution

The fourth proportional to 56,466.18, 77,921.37 and 31,318.02 is: 43,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,466.18 : 77,921.37 = 31,318.02 : x
  2. Step 2: Convert to fraction form
    56,466.18/77,921.37 = 31,318.02/x
  3. Step 3: Cross multiply
    56,466.18x = 77,921.37 × 31,318.02
  4. Step 4: Simplify right side
    56,466.18x = 2,440,343,024.09
  5. Step 5: Solve for x
    x = 2,440,343,024.09/56,466.18
  6. Step 6: Final answer
    x = 43,217.78

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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.