Home / 88,002.16-121,431.90-50,278.84

Finding the Fourth Proportional to 88,002.16, 121,431.90 and 50,278.84

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Solution

The fourth proportional to 88,002.16, 121,431.90 and 50,278.84 is: 69,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,002.16 : 121,431.90 = 50,278.84 : x
  2. Step 2: Convert to fraction form
    88,002.16/121,431.90 = 50,278.84/x
  3. Step 3: Cross multiply
    88,002.16x = 121,431.90 × 50,278.84
  4. Step 4: Simplify right side
    88,002.16x = 6,105,455,071.00
  5. Step 5: Solve for x
    x = 6,105,455,071.00/88,002.16
  6. Step 6: Final answer
    x = 69,378.47

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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.