Home / 88,015.26-121,416.06-55,695.50

Finding the Fourth Proportional to 88,015.26, 121,416.06 and 55,695.50

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Solution

The fourth proportional to 88,015.26, 121,416.06 and 55,695.50 is: 76,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.26 : 121,416.06 = 55,695.50 : x
  2. Step 2: Convert to fraction form
    88,015.26/121,416.06 = 55,695.50/x
  3. Step 3: Cross multiply
    88,015.26x = 121,416.06 × 55,695.50
  4. Step 4: Simplify right side
    88,015.26x = 6,762,328,169.73
  5. Step 5: Solve for x
    x = 6,762,328,169.73/88,015.26
  6. Step 6: Final answer
    x = 76,831.32

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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.