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Finding the Fourth Proportional to 64,230.40, 96,345.60 and 27,289.60

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Solution

The fourth proportional to 64,230.40, 96,345.60 and 27,289.60 is: 40,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,230.40 : 96,345.60 = 27,289.60 : x
  2. Step 2: Convert to fraction form
    64,230.40/96,345.60 = 27,289.60/x
  3. Step 3: Cross multiply
    64,230.40x = 96,345.60 × 27,289.60
  4. Step 4: Simplify right side
    64,230.40x = 2,629,232,885.76
  5. Step 5: Solve for x
    x = 2,629,232,885.76/64,230.40
  6. Step 6: Final answer
    x = 40,934.40

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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.