Home / 89,109.84-122,977.44-51,386.52

Finding the Fourth Proportional to 89,109.84, 122,977.44 and 51,386.52

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Solution

The fourth proportional to 89,109.84, 122,977.44 and 51,386.52 is: 70,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,109.84 : 122,977.44 = 51,386.52 : x
  2. Step 2: Convert to fraction form
    89,109.84/122,977.44 = 51,386.52/x
  3. Step 3: Cross multiply
    89,109.84x = 122,977.44 × 51,386.52
  4. Step 4: Simplify right side
    89,109.84x = 6,319,382,680.11
  5. Step 5: Solve for x
    x = 6,319,382,680.11/89,109.84
  6. Step 6: Final answer
    x = 70,916.78

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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.