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Finding the Fourth Proportional to 64,228.80, 96,285.60 and 57,230.40

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Solution

The fourth proportional to 64,228.80, 96,285.60 and 57,230.40 is: 85,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,228.80 : 96,285.60 = 57,230.40 : x
  2. Step 2: Convert to fraction form
    64,228.80/96,285.60 = 57,230.40/x
  3. Step 3: Cross multiply
    64,228.80x = 96,285.60 × 57,230.40
  4. Step 4: Simplify right side
    64,228.80x = 5,510,463,402.24
  5. Step 5: Solve for x
    x = 5,510,463,402.24/64,228.80
  6. Step 6: Final answer
    x = 85,794.28

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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.