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Finding the Fourth Proportional to 53,559.81, 80,346.71 and 19,821.24

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Solution

The fourth proportional to 53,559.81, 80,346.71 and 19,821.24 is: 29,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,559.81 : 80,346.71 = 19,821.24 : x
  2. Step 2: Convert to fraction form
    53,559.81/80,346.71 = 19,821.24/x
  3. Step 3: Cross multiply
    53,559.81x = 80,346.71 × 19,821.24
  4. Step 4: Simplify right side
    53,559.81x = 1,592,571,323.01
  5. Step 5: Solve for x
    x = 1,592,571,323.01/53,559.81
  6. Step 6: Final answer
    x = 29,734.45

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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.