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Finding the Fourth Proportional to 64,885.73, 89,521.34 and 36,200.74

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Solution

The fourth proportional to 64,885.73, 89,521.34 and 36,200.74 is: 49,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.73 : 89,521.34 = 36,200.74 : x
  2. Step 2: Convert to fraction form
    64,885.73/89,521.34 = 36,200.74/x
  3. Step 3: Cross multiply
    64,885.73x = 89,521.34 × 36,200.74
  4. Step 4: Simplify right side
    64,885.73x = 3,240,739,256.19
  5. Step 5: Solve for x
    x = 3,240,739,256.19/64,885.73
  6. Step 6: Final answer
    x = 49,945.33

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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.