Home / 74,062.93-102,178.31-51,390.58

Finding the Fourth Proportional to 74,062.93, 102,178.31 and 51,390.58

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Solution

The fourth proportional to 74,062.93, 102,178.31 and 51,390.58 is: 70,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.93 : 102,178.31 = 51,390.58 : x
  2. Step 2: Convert to fraction form
    74,062.93/102,178.31 = 51,390.58/x
  3. Step 3: Cross multiply
    74,062.93x = 102,178.31 × 51,390.58
  4. Step 4: Simplify right side
    74,062.93x = 5,251,001,846.48
  5. Step 5: Solve for x
    x = 5,251,001,846.48/74,062.93
  6. Step 6: Final answer
    x = 70,899.19

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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.