Home / 56,293.44-77,686.08-31,143.36

Finding the Fourth Proportional to 56,293.44, 77,686.08 and 31,143.36

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Solution

The fourth proportional to 56,293.44, 77,686.08 and 31,143.36 is: 42,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,293.44 : 77,686.08 = 31,143.36 : x
  2. Step 2: Convert to fraction form
    56,293.44/77,686.08 = 31,143.36/x
  3. Step 3: Cross multiply
    56,293.44x = 77,686.08 × 31,143.36
  4. Step 4: Simplify right side
    56,293.44x = 2,419,405,556.43
  5. Step 5: Solve for x
    x = 2,419,405,556.43/56,293.44
  6. Step 6: Final answer
    x = 42,978.46

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1.5x scale

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.