Home / 56,905.97-78,530.24-31,412.34

Finding the Fourth Proportional to 56,905.97, 78,530.24 and 31,412.34

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Solution

The fourth proportional to 56,905.97, 78,530.24 and 31,412.34 is: 43,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905.97 : 78,530.24 = 31,412.34 : x
  2. Step 2: Convert to fraction form
    56,905.97/78,530.24 = 31,412.34/x
  3. Step 3: Cross multiply
    56,905.97x = 78,530.24 × 31,412.34
  4. Step 4: Simplify right side
    56,905.97x = 2,466,818,442.10
  5. Step 5: Solve for x
    x = 2,466,818,442.10/56,905.97
  6. Step 6: Final answer
    x = 43,349.03

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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.