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Finding the Fourth Proportional to 64,794.36, 89,438.58 and 37,945.50

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Solution

The fourth proportional to 64,794.36, 89,438.58 and 37,945.50 is: 52,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,794.36 : 89,438.58 = 37,945.50 : x
  2. Step 2: Convert to fraction form
    64,794.36/89,438.58 = 37,945.50/x
  3. Step 3: Cross multiply
    64,794.36x = 89,438.58 × 37,945.50
  4. Step 4: Simplify right side
    64,794.36x = 3,393,791,637.39
  5. Step 5: Solve for x
    x = 3,393,791,637.39/64,794.36
  6. Step 6: Final answer
    x = 52,377.89

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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.