Home / 89,989.81-124,175.32-49,701.17

Finding the Fourth Proportional to 89,989.81, 124,175.32 and 49,701.17

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Solution

The fourth proportional to 89,989.81, 124,175.32 and 49,701.17 is: 68,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,989.81 : 124,175.32 = 49,701.17 : x
  2. Step 2: Convert to fraction form
    89,989.81/124,175.32 = 49,701.17/x
  3. Step 3: Cross multiply
    89,989.81x = 124,175.32 × 49,701.17
  4. Step 4: Simplify right side
    89,989.81x = 6,171,658,875.31
  5. Step 5: Solve for x
    x = 6,171,658,875.31/89,989.81
  6. Step 6: Final answer
    x = 68,581.75

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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.