Home / 84,924.36-127,378.71-28,758.02

Finding the Fourth Proportional to 84,924.36, 127,378.71 and 28,758.02

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Solution

The fourth proportional to 84,924.36, 127,378.71 and 28,758.02 is: 43,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,924.36 : 127,378.71 = 28,758.02 : x
  2. Step 2: Convert to fraction form
    84,924.36/127,378.71 = 28,758.02/x
  3. Step 3: Cross multiply
    84,924.36x = 127,378.71 × 28,758.02
  4. Step 4: Simplify right side
    84,924.36x = 3,663,158,852.86
  5. Step 5: Solve for x
    x = 3,663,158,852.86/84,924.36
  6. Step 6: Final answer
    x = 43,134.37

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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.