Home / 92,827.60-139,241.40-57,749.20

Finding the Fourth Proportional to 92,827.60, 139,241.40 and 57,749.20

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Solution

The fourth proportional to 92,827.60, 139,241.40 and 57,749.20 is: 86,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,827.60 : 139,241.40 = 57,749.20 : x
  2. Step 2: Convert to fraction form
    92,827.60/139,241.40 = 57,749.20/x
  3. Step 3: Cross multiply
    92,827.60x = 139,241.40 × 57,749.20
  4. Step 4: Simplify right side
    92,827.60x = 8,041,079,456.88
  5. Step 5: Solve for x
    x = 8,041,079,456.88/92,827.60
  6. Step 6: Final answer
    x = 86,623.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.