Home / 53,831.93-80,720.75-31,349.87

Finding the Fourth Proportional to 53,831.93, 80,720.75 and 31,349.87

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Solution

The fourth proportional to 53,831.93, 80,720.75 and 31,349.87 is: 47,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,831.93 : 80,720.75 = 31,349.87 : x
  2. Step 2: Convert to fraction form
    53,831.93/80,720.75 = 31,349.87/x
  3. Step 3: Cross multiply
    53,831.93x = 80,720.75 × 31,349.87
  4. Step 4: Simplify right side
    53,831.93x = 2,530,585,018.80
  5. Step 5: Solve for x
    x = 2,530,585,018.80/53,831.93
  6. Step 6: Final answer
    x = 47,009.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.