Home / 90,930.10-136,038.75-59,826.10

Finding the Fourth Proportional to 90,930.10, 136,038.75 and 59,826.10

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Solution

The fourth proportional to 90,930.10, 136,038.75 and 59,826.10 is: 89,504.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,930.10 : 136,038.75 = 59,826.10 : x
  2. Step 2: Convert to fraction form
    90,930.10/136,038.75 = 59,826.10/x
  3. Step 3: Cross multiply
    90,930.10x = 136,038.75 × 59,826.10
  4. Step 4: Simplify right side
    90,930.10x = 8,138,667,861.38
  5. Step 5: Solve for x
    x = 8,138,667,861.38/90,930.10
  6. Step 6: Final answer
    x = 89,504.66

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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.