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Finding the Fourth Proportional to 64,403.61, 88,873.83 and 35,720.73

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Solution

The fourth proportional to 64,403.61, 88,873.83 and 35,720.73 is: 49,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,403.61 : 88,873.83 = 35,720.73 : x
  2. Step 2: Convert to fraction form
    64,403.61/88,873.83 = 35,720.73/x
  3. Step 3: Cross multiply
    64,403.61x = 88,873.83 × 35,720.73
  4. Step 4: Simplify right side
    64,403.61x = 3,174,638,185.96
  5. Step 5: Solve for x
    x = 3,174,638,185.96/64,403.61
  6. Step 6: Final answer
    x = 49,292.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.