Home / 64,905.40-89,570.10-38,063.80

Finding the Fourth Proportional to 64,905.40, 89,570.10 and 38,063.80

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Solution

The fourth proportional to 64,905.40, 89,570.10 and 38,063.80 is: 52,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.40 : 89,570.10 = 38,063.80 : x
  2. Step 2: Convert to fraction form
    64,905.40/89,570.10 = 38,063.80/x
  3. Step 3: Cross multiply
    64,905.40x = 89,570.10 × 38,063.80
  4. Step 4: Simplify right side
    64,905.40x = 3,409,378,372.38
  5. Step 5: Solve for x
    x = 3,409,378,372.38/64,905.40
  6. Step 6: Final answer
    x = 52,528.42

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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.