Home / 53,135.99-79,714.49-15,185.60

Finding the Fourth Proportional to 53,135.99, 79,714.49 and 15,185.60

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Solution

The fourth proportional to 53,135.99, 79,714.49 and 15,185.60 is: 22,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,135.99 : 79,714.49 = 15,185.60 : x
  2. Step 2: Convert to fraction form
    53,135.99/79,714.49 = 15,185.60/x
  3. Step 3: Cross multiply
    53,135.99x = 79,714.49 × 15,185.60
  4. Step 4: Simplify right side
    53,135.99x = 1,210,511,941.79
  5. Step 5: Solve for x
    x = 1,210,511,941.79/53,135.99
  6. Step 6: Final answer
    x = 22,781.40

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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.