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Finding the Fourth Proportional to 65,039.20, 97,491.60 and 35,394.40

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Solution

The fourth proportional to 65,039.20, 97,491.60 and 35,394.40 is: 53,055.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,039.20 : 97,491.60 = 35,394.40 : x
  2. Step 2: Convert to fraction form
    65,039.20/97,491.60 = 35,394.40/x
  3. Step 3: Cross multiply
    65,039.20x = 97,491.60 × 35,394.40
  4. Step 4: Simplify right side
    65,039.20x = 3,450,656,687.04
  5. Step 5: Solve for x
    x = 3,450,656,687.04/65,039.20
  6. Step 6: Final answer
    x = 53,055.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.