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Finding the Fourth Proportional to 60,319.36, 83,244 and 39,116.80

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Solution

The fourth proportional to 60,319.36, 83,244 and 39,116.80 is: 53,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,319.36 : 83,244 = 39,116.80 : x
  2. Step 2: Convert to fraction form
    60,319.36/83,244 = 39,116.80/x
  3. Step 3: Cross multiply
    60,319.36x = 83,244 × 39,116.80
  4. Step 4: Simplify right side
    60,319.36x = 3,256,238,899.20
  5. Step 5: Solve for x
    x = 3,256,238,899.20/60,319.36
  6. Step 6: Final answer
    x = 53,983.31

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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.