Home / 56,629.77-78,147.06-31,135.97

Finding the Fourth Proportional to 56,629.77, 78,147.06 and 31,135.97

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Solution

The fourth proportional to 56,629.77, 78,147.06 and 31,135.97 is: 42,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,629.77 : 78,147.06 = 31,135.97 : x
  2. Step 2: Convert to fraction form
    56,629.77/78,147.06 = 31,135.97/x
  3. Step 3: Cross multiply
    56,629.77x = 78,147.06 × 31,135.97
  4. Step 4: Simplify right side
    56,629.77x = 2,433,184,125.01
  5. Step 5: Solve for x
    x = 2,433,184,125.01/56,629.77
  6. Step 6: Final answer
    x = 42,966.52

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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.