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Finding the Fourth Proportional to 88,615.40, 132,801.60 and 56,928.20

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Solution

The fourth proportional to 88,615.40, 132,801.60 and 56,928.20 is: 85,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,615.40 : 132,801.60 = 56,928.20 : x
  2. Step 2: Convert to fraction form
    88,615.40/132,801.60 = 56,928.20/x
  3. Step 3: Cross multiply
    88,615.40x = 132,801.60 × 56,928.20
  4. Step 4: Simplify right side
    88,615.40x = 7,560,156,045.12
  5. Step 5: Solve for x
    x = 7,560,156,045.12/88,615.40
  6. Step 6: Final answer
    x = 85,314.25

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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.