Home / 55,709.20-76,883.95-31,831.25

Finding the Fourth Proportional to 55,709.20, 76,883.95 and 31,831.25

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Solution

The fourth proportional to 55,709.20, 76,883.95 and 31,831.25 is: 43,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,709.20 : 76,883.95 = 31,831.25 : x
  2. Step 2: Convert to fraction form
    55,709.20/76,883.95 = 31,831.25/x
  3. Step 3: Cross multiply
    55,709.20x = 76,883.95 × 31,831.25
  4. Step 4: Simplify right side
    55,709.20x = 2,447,311,888.81
  5. Step 5: Solve for x
    x = 2,447,311,888.81/55,709.20
  6. Step 6: Final answer
    x = 43,930.12

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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.