Home / 88,065.12-121,529.84-50,340.16

Finding the Fourth Proportional to 88,065.12, 121,529.84 and 50,340.16

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Solution

The fourth proportional to 88,065.12, 121,529.84 and 50,340.16 is: 69,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,065.12 : 121,529.84 = 50,340.16 : x
  2. Step 2: Convert to fraction form
    88,065.12/121,529.84 = 50,340.16/x
  3. Step 3: Cross multiply
    88,065.12x = 121,529.84 × 50,340.16
  4. Step 4: Simplify right side
    88,065.12x = 6,117,831,590.37
  5. Step 5: Solve for x
    x = 6,117,831,590.37/88,065.12
  6. Step 6: Final answer
    x = 69,469.41

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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.