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Finding the Fourth Proportional to 64,024.64, 96,065.76 and 40,644.80

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Solution

The fourth proportional to 64,024.64, 96,065.76 and 40,644.80 is: 60,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,024.64 : 96,065.76 = 40,644.80 : x
  2. Step 2: Convert to fraction form
    64,024.64/96,065.76 = 40,644.80/x
  3. Step 3: Cross multiply
    64,024.64x = 96,065.76 × 40,644.80
  4. Step 4: Simplify right side
    64,024.64x = 3,904,573,602.05
  5. Step 5: Solve for x
    x = 3,904,573,602.05/64,024.64
  6. Step 6: Final answer
    x = 60,985.48

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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.