Home / 56,294.25-77,686.07-31,145.37

Finding the Fourth Proportional to 56,294.25, 77,686.07 and 31,145.37

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Solution

The fourth proportional to 56,294.25, 77,686.07 and 31,145.37 is: 42,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,294.25 : 77,686.07 = 31,145.37 : x
  2. Step 2: Convert to fraction form
    56,294.25/77,686.07 = 31,145.37/x
  3. Step 3: Cross multiply
    56,294.25x = 77,686.07 × 31,145.37
  4. Step 4: Simplify right side
    56,294.25x = 2,419,561,238.27
  5. Step 5: Solve for x
    x = 2,419,561,238.27/56,294.25
  6. Step 6: Final answer
    x = 42,980.61

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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.