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Finding the Fourth Proportional to 64,091.79, 96,137.91 and 19,718.22

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Solution

The fourth proportional to 64,091.79, 96,137.91 and 19,718.22 is: 29,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,091.79 : 96,137.91 = 19,718.22 : x
  2. Step 2: Convert to fraction form
    64,091.79/96,137.91 = 19,718.22/x
  3. Step 3: Cross multiply
    64,091.79x = 96,137.91 × 19,718.22
  4. Step 4: Simplify right side
    64,091.79x = 1,895,668,459.72
  5. Step 5: Solve for x
    x = 1,895,668,459.72/64,091.79
  6. Step 6: Final answer
    x = 29,577.40

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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.