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Finding the Fourth Proportional to 88,333.61, 121,903.61 and 50,615.15

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Solution

The fourth proportional to 88,333.61, 121,903.61 and 50,615.15 is: 69,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,333.61 : 121,903.61 = 50,615.15 : x
  2. Step 2: Convert to fraction form
    88,333.61/121,903.61 = 50,615.15/x
  3. Step 3: Cross multiply
    88,333.61x = 121,903.61 × 50,615.15
  4. Step 4: Simplify right side
    88,333.61x = 6,170,168,643.10
  5. Step 5: Solve for x
    x = 6,170,168,643.10/88,333.61
  6. Step 6: Final answer
    x = 69,850.75

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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.