Home / 51,054.29-70,446.34-28,390.31

Finding the Fourth Proportional to 51,054.29, 70,446.34 and 28,390.31

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Solution

The fourth proportional to 51,054.29, 70,446.34 and 28,390.31 is: 39,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,054.29 : 70,446.34 = 28,390.31 : x
  2. Step 2: Convert to fraction form
    51,054.29/70,446.34 = 28,390.31/x
  3. Step 3: Cross multiply
    51,054.29x = 70,446.34 × 28,390.31
  4. Step 4: Simplify right side
    51,054.29x = 1,999,993,430.97
  5. Step 5: Solve for x
    x = 1,999,993,430.97/51,054.29
  6. Step 6: Final answer
    x = 39,173.86

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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.