Home / 74,427.92-102,681.44-42,579.76

Finding the Fourth Proportional to 74,427.92, 102,681.44 and 42,579.76

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Solution

The fourth proportional to 74,427.92, 102,681.44 and 42,579.76 is: 58,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.92 : 102,681.44 = 42,579.76 : x
  2. Step 2: Convert to fraction form
    74,427.92/102,681.44 = 42,579.76/x
  3. Step 3: Cross multiply
    74,427.92x = 102,681.44 × 42,579.76
  4. Step 4: Simplify right side
    74,427.92x = 4,372,151,071.65
  5. Step 5: Solve for x
    x = 4,372,151,071.65/74,427.92
  6. Step 6: Final answer
    x = 58,743.43

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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.