Home / 78,058.23-107,695.22-47,812.02

Finding the Fourth Proportional to 78,058.23, 107,695.22 and 47,812.02

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Solution

The fourth proportional to 78,058.23, 107,695.22 and 47,812.02 is: 65,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,058.23 : 107,695.22 = 47,812.02 : x
  2. Step 2: Convert to fraction form
    78,058.23/107,695.22 = 47,812.02/x
  3. Step 3: Cross multiply
    78,058.23x = 107,695.22 × 47,812.02
  4. Step 4: Simplify right side
    78,058.23x = 5,149,125,773.48
  5. Step 5: Solve for x
    x = 5,149,125,773.48/78,058.23
  6. Step 6: Final answer
    x = 65,965.19

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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.