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Finding the Fourth Proportional to 88,628.40, 132,942.60 and 65,008.80

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Solution

The fourth proportional to 88,628.40, 132,942.60 and 65,008.80 is: 97,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,628.40 : 132,942.60 = 65,008.80 : x
  2. Step 2: Convert to fraction form
    88,628.40/132,942.60 = 65,008.80/x
  3. Step 3: Cross multiply
    88,628.40x = 132,942.60 × 65,008.80
  4. Step 4: Simplify right side
    88,628.40x = 8,642,438,894.88
  5. Step 5: Solve for x
    x = 8,642,438,894.88/88,628.40
  6. Step 6: Final answer
    x = 97,513.20

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1.5x scale

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.