Home / 51,284.48-70,774.56-28,928

Finding the Fourth Proportional to 51,284.48, 70,774.56 and 28,928

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Solution

The fourth proportional to 51,284.48, 70,774.56 and 28,928 is: 39,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,284.48 : 70,774.56 = 28,928 : x
  2. Step 2: Convert to fraction form
    51,284.48/70,774.56 = 28,928/x
  3. Step 3: Cross multiply
    51,284.48x = 70,774.56 × 28,928
  4. Step 4: Simplify right side
    51,284.48x = 2,047,366,471.68
  5. Step 5: Solve for x
    x = 2,047,366,471.68/51,284.48
  6. Step 6: Final answer
    x = 39,921.76

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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.