Home / 69,897.10-96,454.70-39,678.43

Finding the Fourth Proportional to 69,897.10, 96,454.70 and 39,678.43

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Solution

The fourth proportional to 69,897.10, 96,454.70 and 39,678.43 is: 54,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,897.10 : 96,454.70 = 39,678.43 : x
  2. Step 2: Convert to fraction form
    69,897.10/96,454.70 = 39,678.43/x
  3. Step 3: Cross multiply
    69,897.10x = 96,454.70 × 39,678.43
  4. Step 4: Simplify right side
    69,897.10x = 3,827,171,062.12
  5. Step 5: Solve for x
    x = 3,827,171,062.12/69,897.10
  6. Step 6: Final answer
    x = 54,754.36

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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.