Home / 74,099.36-102,257.16-40,565.36

Finding the Fourth Proportional to 74,099.36, 102,257.16 and 40,565.36

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Solution

The fourth proportional to 74,099.36, 102,257.16 and 40,565.36 is: 55,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.36 : 102,257.16 = 40,565.36 : x
  2. Step 2: Convert to fraction form
    74,099.36/102,257.16 = 40,565.36/x
  3. Step 3: Cross multiply
    74,099.36x = 102,257.16 × 40,565.36
  4. Step 4: Simplify right side
    74,099.36x = 4,148,098,507.98
  5. Step 5: Solve for x
    x = 4,148,098,507.98/74,099.36
  6. Step 6: Final answer
    x = 55,980.22

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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.