Home / 89,988.30-123,893.28-74,045.34

Finding the Fourth Proportional to 89,988.30, 123,893.28 and 74,045.34

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Solution

The fourth proportional to 89,988.30, 123,893.28 and 74,045.34 is: 101,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,988.30 : 123,893.28 = 74,045.34 : x
  2. Step 2: Convert to fraction form
    89,988.30/123,893.28 = 74,045.34/x
  3. Step 3: Cross multiply
    89,988.30x = 123,893.28 × 74,045.34
  4. Step 4: Simplify right side
    89,988.30x = 9,173,720,041.32
  5. Step 5: Solve for x
    x = 9,173,720,041.32/89,988.30
  6. Step 6: Final answer
    x = 101,943.48

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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.