Home / 78,831.93-118,177.57-28,900.37

Finding the Fourth Proportional to 78,831.93, 118,177.57 and 28,900.37

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Solution

The fourth proportional to 78,831.93, 118,177.57 and 28,900.37 is: 43,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,831.93 : 118,177.57 = 28,900.37 : x
  2. Step 2: Convert to fraction form
    78,831.93/118,177.57 = 28,900.37/x
  3. Step 3: Cross multiply
    78,831.93x = 118,177.57 × 28,900.37
  4. Step 4: Simplify right side
    78,831.93x = 3,415,374,763.31
  5. Step 5: Solve for x
    x = 3,415,374,763.31/78,831.93
  6. Step 6: Final answer
    x = 43,324.76

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1.5x scale

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.