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Finding the Fourth Proportional to 53,329.92, 79,968.04 and 17,778.64

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Solution

The fourth proportional to 53,329.92, 79,968.04 and 17,778.64 is: 26,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,329.92 : 79,968.04 = 17,778.64 : x
  2. Step 2: Convert to fraction form
    53,329.92/79,968.04 = 17,778.64/x
  3. Step 3: Cross multiply
    53,329.92x = 79,968.04 × 17,778.64
  4. Step 4: Simplify right side
    53,329.92x = 1,421,722,994.67
  5. Step 5: Solve for x
    x = 1,421,722,994.67/53,329.92
  6. Step 6: Final answer
    x = 26,659.01

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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.