Home / 56,831.24-78,427.56-31,682.36

Finding the Fourth Proportional to 56,831.24, 78,427.56 and 31,682.36

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Solution

The fourth proportional to 56,831.24, 78,427.56 and 31,682.36 is: 43,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,831.24 : 78,427.56 = 31,682.36 : x
  2. Step 2: Convert to fraction form
    56,831.24/78,427.56 = 31,682.36/x
  3. Step 3: Cross multiply
    56,831.24x = 78,427.56 × 31,682.36
  4. Step 4: Simplify right side
    56,831.24x = 2,484,770,189.84
  5. Step 5: Solve for x
    x = 2,484,770,189.84/56,831.24
  6. Step 6: Final answer
    x = 43,721.91

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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.