Home / 89,302.59-123,212.40-57,489.94

Finding the Fourth Proportional to 89,302.59, 123,212.40 and 57,489.94

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Solution

The fourth proportional to 89,302.59, 123,212.40 and 57,489.94 is: 79,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,302.59 : 123,212.40 = 57,489.94 : x
  2. Step 2: Convert to fraction form
    89,302.59/123,212.40 = 57,489.94/x
  3. Step 3: Cross multiply
    89,302.59x = 123,212.40 × 57,489.94
  4. Step 4: Simplify right side
    89,302.59x = 7,083,473,483.26
  5. Step 5: Solve for x
    x = 7,083,473,483.26/89,302.59
  6. Step 6: Final answer
    x = 79,319.91

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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.