Home / 53,378.31-73,657.26-30,711.27

Finding the Fourth Proportional to 53,378.31, 73,657.26 and 30,711.27

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Solution

The fourth proportional to 53,378.31, 73,657.26 and 30,711.27 is: 42,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,378.31 : 73,657.26 = 30,711.27 : x
  2. Step 2: Convert to fraction form
    53,378.31/73,657.26 = 30,711.27/x
  3. Step 3: Cross multiply
    53,378.31x = 73,657.26 × 30,711.27
  4. Step 4: Simplify right side
    53,378.31x = 2,262,107,999.32
  5. Step 5: Solve for x
    x = 2,262,107,999.32/53,378.31
  6. Step 6: Final answer
    x = 42,378.79

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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.