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Finding the Fourth Proportional to 53,205.48, 79,807.74 and 20,373.48

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Solution

The fourth proportional to 53,205.48, 79,807.74 and 20,373.48 is: 30,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,205.48 : 79,807.74 = 20,373.48 : x
  2. Step 2: Convert to fraction form
    53,205.48/79,807.74 = 20,373.48/x
  3. Step 3: Cross multiply
    53,205.48x = 79,807.74 × 20,373.48
  4. Step 4: Simplify right side
    53,205.48x = 1,625,961,394.74
  5. Step 5: Solve for x
    x = 1,625,961,394.74/53,205.48
  6. Step 6: Final answer
    x = 30,560.04

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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.