Home / 51,419.36-70,958.51-28,758.26

Finding the Fourth Proportional to 51,419.36, 70,958.51 and 28,758.26

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Solution

The fourth proportional to 51,419.36, 70,958.51 and 28,758.26 is: 39,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,419.36 : 70,958.51 = 28,758.26 : x
  2. Step 2: Convert to fraction form
    51,419.36/70,958.51 = 28,758.26/x
  3. Step 3: Cross multiply
    51,419.36x = 70,958.51 × 28,758.26
  4. Step 4: Simplify right side
    51,419.36x = 2,040,642,781.21
  5. Step 5: Solve for x
    x = 2,040,642,781.21/51,419.36
  6. Step 6: Final answer
    x = 39,686.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.