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Finding the Fourth Proportional to 64,420.97, 88,901.04 and 35,739.73

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Solution

The fourth proportional to 64,420.97, 88,901.04 and 35,739.73 is: 49,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,420.97 : 88,901.04 = 35,739.73 : x
  2. Step 2: Convert to fraction form
    64,420.97/88,901.04 = 35,739.73/x
  3. Step 3: Cross multiply
    64,420.97x = 88,901.04 × 35,739.73
  4. Step 4: Simplify right side
    64,420.97x = 3,177,299,411.47
  5. Step 5: Solve for x
    x = 3,177,299,411.47/64,420.97
  6. Step 6: Final answer
    x = 49,320.89

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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.