Home / 89,971.78-124,160.42-49,685.22

Finding the Fourth Proportional to 89,971.78, 124,160.42 and 49,685.22

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Solution

The fourth proportional to 89,971.78, 124,160.42 and 49,685.22 is: 68,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,971.78 : 124,160.42 = 49,685.22 : x
  2. Step 2: Convert to fraction form
    89,971.78/124,160.42 = 49,685.22/x
  3. Step 3: Cross multiply
    89,971.78x = 124,160.42 × 49,685.22
  4. Step 4: Simplify right side
    89,971.78x = 6,168,937,782.99
  5. Step 5: Solve for x
    x = 6,168,937,782.99/89,971.78
  6. Step 6: Final answer
    x = 68,565.25

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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.