Home / 89,938.08-124,118.76-49,657.60

Finding the Fourth Proportional to 89,938.08, 124,118.76 and 49,657.60

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Solution

The fourth proportional to 89,938.08, 124,118.76 and 49,657.60 is: 68,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,938.08 : 124,118.76 = 49,657.60 : x
  2. Step 2: Convert to fraction form
    89,938.08/124,118.76 = 49,657.60/x
  3. Step 3: Cross multiply
    89,938.08x = 124,118.76 × 49,657.60
  4. Step 4: Simplify right side
    89,938.08x = 6,163,439,736.58
  5. Step 5: Solve for x
    x = 6,163,439,736.58/89,938.08
  6. Step 6: Final answer
    x = 68,529.81

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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.