Home / 89,981.30-124,173.88-49,699.46

Finding the Fourth Proportional to 89,981.30, 124,173.88 and 49,699.46

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Solution

The fourth proportional to 89,981.30, 124,173.88 and 49,699.46 is: 68,585.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.30 : 124,173.88 = 49,699.46 : x
  2. Step 2: Convert to fraction form
    89,981.30/124,173.88 = 49,699.46/x
  3. Step 3: Cross multiply
    89,981.30x = 124,173.88 × 49,699.46
  4. Step 4: Simplify right side
    89,981.30x = 6,171,374,968.29
  5. Step 5: Solve for x
    x = 6,171,374,968.29/89,981.30
  6. Step 6: Final answer
    x = 68,585.08

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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.