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Finding the Fourth Proportional to 64,404.91, 96,621.03 and 19,427.63

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Solution

The fourth proportional to 64,404.91, 96,621.03 and 19,427.63 is: 29,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,404.91 : 96,621.03 = 19,427.63 : x
  2. Step 2: Convert to fraction form
    64,404.91/96,621.03 = 19,427.63/x
  3. Step 3: Cross multiply
    64,404.91x = 96,621.03 × 19,427.63
  4. Step 4: Simplify right side
    64,404.91x = 1,877,117,621.06
  5. Step 5: Solve for x
    x = 1,877,117,621.06/64,404.91
  6. Step 6: Final answer
    x = 29,145.57

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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.