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Finding the Fourth Proportional to 64,129.60, 96,103.68 and 50,262.40

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Solution

The fourth proportional to 64,129.60, 96,103.68 and 50,262.40 is: 75,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.60 : 96,103.68 = 50,262.40 : x
  2. Step 2: Convert to fraction form
    64,129.60/96,103.68 = 50,262.40/x
  3. Step 3: Cross multiply
    64,129.60x = 96,103.68 × 50,262.40
  4. Step 4: Simplify right side
    64,129.60x = 4,830,401,605.63
  5. Step 5: Solve for x
    x = 4,830,401,605.63/64,129.60
  6. Step 6: Final answer
    x = 75,322.50

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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.