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Finding the Fourth Proportional to 88,333, 121,899.54 and 50,629.12

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Solution

The fourth proportional to 88,333, 121,899.54 and 50,629.12 is: 69,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,333 : 121,899.54 = 50,629.12 : x
  2. Step 2: Convert to fraction form
    88,333/121,899.54 = 50,629.12/x
  3. Step 3: Cross multiply
    88,333x = 121,899.54 × 50,629.12
  4. Step 4: Simplify right side
    88,333x = 6,171,666,438.60
  5. Step 5: Solve for x
    x = 6,171,666,438.60/88,333
  6. Step 6: Final answer
    x = 69,868.19

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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.