Home / 65,112.20-97,668.30-38,430.80

Finding the Fourth Proportional to 65,112.20, 97,668.30 and 38,430.80

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Solution

The fourth proportional to 65,112.20, 97,668.30 and 38,430.80 is: 57,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,112.20 : 97,668.30 = 38,430.80 : x
  2. Step 2: Convert to fraction form
    65,112.20/97,668.30 = 38,430.80/x
  3. Step 3: Cross multiply
    65,112.20x = 97,668.30 × 38,430.80
  4. Step 4: Simplify right side
    65,112.20x = 3,753,470,903.64
  5. Step 5: Solve for x
    x = 3,753,470,903.64/65,112.20
  6. Step 6: Final answer
    x = 57,646.20

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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.