Home / 88,315.16-121,872.21-50,078.21

Finding the Fourth Proportional to 88,315.16, 121,872.21 and 50,078.21

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Solution

The fourth proportional to 88,315.16, 121,872.21 and 50,078.21 is: 69,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,315.16 : 121,872.21 = 50,078.21 : x
  2. Step 2: Convert to fraction form
    88,315.16/121,872.21 = 50,078.21/x
  3. Step 3: Cross multiply
    88,315.16x = 121,872.21 × 50,078.21
  4. Step 4: Simplify right side
    88,315.16x = 6,103,142,125.54
  5. Step 5: Solve for x
    x = 6,103,142,125.54/88,315.16
  6. Step 6: Final answer
    x = 69,106.39

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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.