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Finding the Fourth Proportional to 64,145.86, 96,149.67 and 36,428.74

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Solution

The fourth proportional to 64,145.86, 96,149.67 and 36,428.74 is: 54,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.86 : 96,149.67 = 36,428.74 : x
  2. Step 2: Convert to fraction form
    64,145.86/96,149.67 = 36,428.74/x
  3. Step 3: Cross multiply
    64,145.86x = 96,149.67 × 36,428.74
  4. Step 4: Simplify right side
    64,145.86x = 3,502,611,329.52
  5. Step 5: Solve for x
    x = 3,502,611,329.52/64,145.86
  6. Step 6: Final answer
    x = 54,603.86

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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.