Home / 56,419.36-77,858.78-31,268.88

Finding the Fourth Proportional to 56,419.36, 77,858.78 and 31,268.88

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Solution

The fourth proportional to 56,419.36, 77,858.78 and 31,268.88 is: 43,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.36 : 77,858.78 = 31,268.88 : x
  2. Step 2: Convert to fraction form
    56,419.36/77,858.78 = 31,268.88/x
  3. Step 3: Cross multiply
    56,419.36x = 77,858.78 × 31,268.88
  4. Step 4: Simplify right side
    56,419.36x = 2,434,556,848.77
  5. Step 5: Solve for x
    x = 2,434,556,848.77/56,419.36
  6. Step 6: Final answer
    x = 43,151.09

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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.