Home / 53,135.51-79,713.78-15,185.12

Finding the Fourth Proportional to 53,135.51, 79,713.78 and 15,185.12

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Solution

The fourth proportional to 53,135.51, 79,713.78 and 15,185.12 is: 22,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,135.51 : 79,713.78 = 15,185.12 : x
  2. Step 2: Convert to fraction form
    53,135.51/79,713.78 = 15,185.12/x
  3. Step 3: Cross multiply
    53,135.51x = 79,713.78 × 15,185.12
  4. Step 4: Simplify right side
    53,135.51x = 1,210,463,750.89
  5. Step 5: Solve for x
    x = 1,210,463,750.89/53,135.51
  6. Step 6: Final answer
    x = 22,780.69

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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.