Home / 351,743.79-527,610.96-85,503.54

Finding the Fourth Proportional to 351,743.79, 527,610.96 and 85,503.54

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Solution

The fourth proportional to 351,743.79, 527,610.96 and 85,503.54 is: 128,254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,743.79 : 527,610.96 = 85,503.54 : x
  2. Step 2: Convert to fraction form
    351,743.79/527,610.96 = 85,503.54/x
  3. Step 3: Cross multiply
    351,743.79x = 527,610.96 × 85,503.54
  4. Step 4: Simplify right side
    351,743.79x = 45,112,604,822.80
  5. Step 5: Solve for x
    x = 45,112,604,822.80/351,743.79
  6. Step 6: Final answer
    x = 128,254.16

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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.