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Finding the Fourth Proportional to 64,192.80, 96,289.20 and 57,631.80

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Solution

The fourth proportional to 64,192.80, 96,289.20 and 57,631.80 is: 86,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,192.80 : 96,289.20 = 57,631.80 : x
  2. Step 2: Convert to fraction form
    64,192.80/96,289.20 = 57,631.80/x
  3. Step 3: Cross multiply
    64,192.80x = 96,289.20 × 57,631.80
  4. Step 4: Simplify right side
    64,192.80x = 5,549,319,916.56
  5. Step 5: Solve for x
    x = 5,549,319,916.56/64,192.80
  6. Step 6: Final answer
    x = 86,447.70

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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.