Home / 351,916.48-527,875.76-85,676.96

Finding the Fourth Proportional to 351,916.48, 527,875.76 and 85,676.96

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Solution

The fourth proportional to 351,916.48, 527,875.76 and 85,676.96 is: 128,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,916.48 : 527,875.76 = 85,676.96 : x
  2. Step 2: Convert to fraction form
    351,916.48/527,875.76 = 85,676.96/x
  3. Step 3: Cross multiply
    351,916.48x = 527,875.76 × 85,676.96
  4. Step 4: Simplify right side
    351,916.48x = 45,226,790,374.49
  5. Step 5: Solve for x
    x = 45,226,790,374.49/351,916.48
  6. Step 6: Final answer
    x = 128,515.69

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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.