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Finding the Fourth Proportional to 64,256.40, 96,384.60 and 53,197.20

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Solution

The fourth proportional to 64,256.40, 96,384.60 and 53,197.20 is: 79,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,256.40 : 96,384.60 = 53,197.20 : x
  2. Step 2: Convert to fraction form
    64,256.40/96,384.60 = 53,197.20/x
  3. Step 3: Cross multiply
    64,256.40x = 96,384.60 × 53,197.20
  4. Step 4: Simplify right side
    64,256.40x = 5,127,390,843.12
  5. Step 5: Solve for x
    x = 5,127,390,843.12/64,256.40
  6. Step 6: Final answer
    x = 79,795.80

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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.