Home / 89,980.19-124,172.66-52,256.87

Finding the Fourth Proportional to 89,980.19, 124,172.66 and 52,256.87

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Solution

The fourth proportional to 89,980.19, 124,172.66 and 52,256.87 is: 72,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,980.19 : 124,172.66 = 52,256.87 : x
  2. Step 2: Convert to fraction form
    89,980.19/124,172.66 = 52,256.87/x
  3. Step 3: Cross multiply
    89,980.19x = 124,172.66 × 52,256.87
  4. Step 4: Simplify right side
    89,980.19x = 6,488,874,551.17
  5. Step 5: Solve for x
    x = 6,488,874,551.17/89,980.19
  6. Step 6: Final answer
    x = 72,114.48

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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.