Home / 53,108.01-79,636.10-18,902.39

Finding the Fourth Proportional to 53,108.01, 79,636.10 and 18,902.39

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Solution

The fourth proportional to 53,108.01, 79,636.10 and 18,902.39 is: 28,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,108.01 : 79,636.10 = 18,902.39 : x
  2. Step 2: Convert to fraction form
    53,108.01/79,636.10 = 18,902.39/x
  3. Step 3: Cross multiply
    53,108.01x = 79,636.10 × 18,902.39
  4. Step 4: Simplify right side
    53,108.01x = 1,505,312,127.59
  5. Step 5: Solve for x
    x = 1,505,312,127.59/53,108.01
  6. Step 6: Final answer
    x = 28,344.35

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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.