Home / 68,408.96-94,358.40-51,457.28

Finding the Fourth Proportional to 68,408.96, 94,358.40 and 51,457.28

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Solution

The fourth proportional to 68,408.96, 94,358.40 and 51,457.28 is: 70,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,408.96 : 94,358.40 = 51,457.28 : x
  2. Step 2: Convert to fraction form
    68,408.96/94,358.40 = 51,457.28/x
  3. Step 3: Cross multiply
    68,408.96x = 94,358.40 × 51,457.28
  4. Step 4: Simplify right side
    68,408.96x = 4,855,426,609.15
  5. Step 5: Solve for x
    x = 4,855,426,609.15/68,408.96
  6. Step 6: Final answer
    x = 70,976.47

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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.