Home / 56,865.06-78,468.44-54,954.20

Finding the Fourth Proportional to 56,865.06, 78,468.44 and 54,954.20

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Solution

The fourth proportional to 56,865.06, 78,468.44 and 54,954.20 is: 75,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.06 : 78,468.44 = 54,954.20 : x
  2. Step 2: Convert to fraction form
    56,865.06/78,468.44 = 54,954.20/x
  3. Step 3: Cross multiply
    56,865.06x = 78,468.44 × 54,954.20
  4. Step 4: Simplify right side
    56,865.06x = 4,312,170,345.45
  5. Step 5: Solve for x
    x = 4,312,170,345.45/56,865.06
  6. Step 6: Final answer
    x = 75,831.63

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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.