Home / 84,124.78-116,099.16-48,321.70

Finding the Fourth Proportional to 84,124.78, 116,099.16 and 48,321.70

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Solution

The fourth proportional to 84,124.78, 116,099.16 and 48,321.70 is: 66,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,124.78 : 116,099.16 = 48,321.70 : x
  2. Step 2: Convert to fraction form
    84,124.78/116,099.16 = 48,321.70/x
  3. Step 3: Cross multiply
    84,124.78x = 116,099.16 × 48,321.70
  4. Step 4: Simplify right side
    84,124.78x = 5,610,108,779.77
  5. Step 5: Solve for x
    x = 5,610,108,779.77/84,124.78
  6. Step 6: Final answer
    x = 66,687.95

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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.