Home / 71,561.44-98,782.56-53,708.20

Finding the Fourth Proportional to 71,561.44, 98,782.56 and 53,708.20

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Solution

The fourth proportional to 71,561.44, 98,782.56 and 53,708.20 is: 74,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,561.44 : 98,782.56 = 53,708.20 : x
  2. Step 2: Convert to fraction form
    71,561.44/98,782.56 = 53,708.20/x
  3. Step 3: Cross multiply
    71,561.44x = 98,782.56 × 53,708.20
  4. Step 4: Simplify right side
    71,561.44x = 5,305,433,488.99
  5. Step 5: Solve for x
    x = 5,305,433,488.99/71,561.44
  6. Step 6: Final answer
    x = 74,138.16

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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.