Home / 91,155.78-136,652.40-49,058.46

Finding the Fourth Proportional to 91,155.78, 136,652.40 and 49,058.46

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Solution

The fourth proportional to 91,155.78, 136,652.40 and 49,058.46 is: 73,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.78 : 136,652.40 = 49,058.46 : x
  2. Step 2: Convert to fraction form
    91,155.78/136,652.40 = 49,058.46/x
  3. Step 3: Cross multiply
    91,155.78x = 136,652.40 × 49,058.46
  4. Step 4: Simplify right side
    91,155.78x = 6,703,956,299.30
  5. Step 5: Solve for x
    x = 6,703,956,299.30/91,155.78
  6. Step 6: Final answer
    x = 73,543.95

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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.