Home / 55,412.40-76,468.08-31,213.44

Finding the Fourth Proportional to 55,412.40, 76,468.08 and 31,213.44

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Solution

The fourth proportional to 55,412.40, 76,468.08 and 31,213.44 is: 43,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.40 : 76,468.08 = 31,213.44 : x
  2. Step 2: Convert to fraction form
    55,412.40/76,468.08 = 31,213.44/x
  3. Step 3: Cross multiply
    55,412.40x = 76,468.08 × 31,213.44
  4. Step 4: Simplify right side
    55,412.40x = 2,386,831,827.00
  5. Step 5: Solve for x
    x = 2,386,831,827.00/55,412.40
  6. Step 6: Final answer
    x = 43,073.97

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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.