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Finding the Fourth Proportional to 53,303.80, 79,955.70 and 33,620.80

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Solution

The fourth proportional to 53,303.80, 79,955.70 and 33,620.80 is: 50,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,303.80 : 79,955.70 = 33,620.80 : x
  2. Step 2: Convert to fraction form
    53,303.80/79,955.70 = 33,620.80/x
  3. Step 3: Cross multiply
    53,303.80x = 79,955.70 × 33,620.80
  4. Step 4: Simplify right side
    53,303.80x = 2,688,174,598.56
  5. Step 5: Solve for x
    x = 2,688,174,598.56/53,303.80
  6. Step 6: Final answer
    x = 50,431.20

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Similar ratio
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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.