Home / 74,062.65-102,177.92-51,390.30

Finding the Fourth Proportional to 74,062.65, 102,177.92 and 51,390.30

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Solution

The fourth proportional to 74,062.65, 102,177.92 and 51,390.30 is: 70,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.65 : 102,177.92 = 51,390.30 : x
  2. Step 2: Convert to fraction form
    74,062.65/102,177.92 = 51,390.30/x
  3. Step 3: Cross multiply
    74,062.65x = 102,177.92 × 51,390.30
  4. Step 4: Simplify right side
    74,062.65x = 5,250,953,322.06
  5. Step 5: Solve for x
    x = 5,250,953,322.06/74,062.65
  6. Step 6: Final answer
    x = 70,898.80

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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.