Home / 74,534.88-102,904.08-51,291.36

Finding the Fourth Proportional to 74,534.88, 102,904.08 and 51,291.36

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Solution

The fourth proportional to 74,534.88, 102,904.08 and 51,291.36 is: 70,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,534.88 : 102,904.08 = 51,291.36 : x
  2. Step 2: Convert to fraction form
    74,534.88/102,904.08 = 51,291.36/x
  3. Step 3: Cross multiply
    74,534.88x = 102,904.08 × 51,291.36
  4. Step 4: Simplify right side
    74,534.88x = 5,278,090,212.75
  5. Step 5: Solve for x
    x = 5,278,090,212.75/74,534.88
  6. Step 6: Final answer
    x = 70,813.69

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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.