Home / 76,327.09-105,343.99-42,346.52

Finding the Fourth Proportional to 76,327.09, 105,343.99 and 42,346.52

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Solution

The fourth proportional to 76,327.09, 105,343.99 and 42,346.52 is: 58,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,327.09 : 105,343.99 = 42,346.52 : x
  2. Step 2: Convert to fraction form
    76,327.09/105,343.99 = 42,346.52/x
  3. Step 3: Cross multiply
    76,327.09x = 105,343.99 × 42,346.52
  4. Step 4: Simplify right side
    76,327.09x = 4,460,951,141.87
  5. Step 5: Solve for x
    x = 4,460,951,141.87/76,327.09
  6. Step 6: Final answer
    x = 58,445.19

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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.