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Finding the Fourth Proportional to 88,910.40, 133,041.60 and 55,646.40

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Solution

The fourth proportional to 88,910.40, 133,041.60 and 55,646.40 is: 83,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,910.40 : 133,041.60 = 55,646.40 : x
  2. Step 2: Convert to fraction form
    88,910.40/133,041.60 = 55,646.40/x
  3. Step 3: Cross multiply
    88,910.40x = 133,041.60 × 55,646.40
  4. Step 4: Simplify right side
    88,910.40x = 7,403,286,090.24
  5. Step 5: Solve for x
    x = 7,403,286,090.24/88,910.40
  6. Step 6: Final answer
    x = 83,266.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.