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Finding the Fourth Proportional to 64,744.80, 89,347.50 and 36,450.69

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Solution

The fourth proportional to 64,744.80, 89,347.50 and 36,450.69 is: 50,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,744.80 : 89,347.50 = 36,450.69 : x
  2. Step 2: Convert to fraction form
    64,744.80/89,347.50 = 36,450.69/x
  3. Step 3: Cross multiply
    64,744.80x = 89,347.50 × 36,450.69
  4. Step 4: Simplify right side
    64,744.80x = 3,256,778,024.78
  5. Step 5: Solve for x
    x = 3,256,778,024.78/64,744.80
  6. Step 6: Final answer
    x = 50,301.77

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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.