Home / 78,058.47-107,723.31-47,837.96

Finding the Fourth Proportional to 78,058.47, 107,723.31 and 47,837.96

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Solution

The fourth proportional to 78,058.47, 107,723.31 and 47,837.96 is: 66,017.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,058.47 : 107,723.31 = 47,837.96 : x
  2. Step 2: Convert to fraction form
    78,058.47/107,723.31 = 47,837.96/x
  3. Step 3: Cross multiply
    78,058.47x = 107,723.31 × 47,837.96
  4. Step 4: Simplify right side
    78,058.47x = 5,153,263,394.85
  5. Step 5: Solve for x
    x = 5,153,263,394.85/78,058.47
  6. Step 6: Final answer
    x = 66,017.99

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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.