Home / 88,281.74-121,831.20-47,998.21

Finding the Fourth Proportional to 88,281.74, 121,831.20 and 47,998.21

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Solution

The fourth proportional to 88,281.74, 121,831.20 and 47,998.21 is: 66,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,281.74 : 121,831.20 = 47,998.21 : x
  2. Step 2: Convert to fraction form
    88,281.74/121,831.20 = 47,998.21/x
  3. Step 3: Cross multiply
    88,281.74x = 121,831.20 × 47,998.21
  4. Step 4: Simplify right side
    88,281.74x = 5,847,679,097.58
  5. Step 5: Solve for x
    x = 5,847,679,097.58/88,281.74
  6. Step 6: Final answer
    x = 66,238.83

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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.