Home / 51,175.12-76,757.28-13,739.08

Finding the Fourth Proportional to 51,175.12, 76,757.28 and 13,739.08

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Solution

The fourth proportional to 51,175.12, 76,757.28 and 13,739.08 is: 20,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,175.12 : 76,757.28 = 13,739.08 : x
  2. Step 2: Convert to fraction form
    51,175.12/76,757.28 = 13,739.08/x
  3. Step 3: Cross multiply
    51,175.12x = 76,757.28 × 13,739.08
  4. Step 4: Simplify right side
    51,175.12x = 1,054,574,410.50
  5. Step 5: Solve for x
    x = 1,054,574,410.50/51,175.12
  6. Step 6: Final answer
    x = 20,607.17

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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.