Home / 78,928.40-108,911.36-44,941.28

Finding the Fourth Proportional to 78,928.40, 108,911.36 and 44,941.28

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Solution

The fourth proportional to 78,928.40, 108,911.36 and 44,941.28 is: 62,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.40 : 108,911.36 = 44,941.28 : x
  2. Step 2: Convert to fraction form
    78,928.40/108,911.36 = 44,941.28/x
  3. Step 3: Cross multiply
    78,928.40x = 108,911.36 × 44,941.28
  4. Step 4: Simplify right side
    78,928.40x = 4,894,615,924.94
  5. Step 5: Solve for x
    x = 4,894,615,924.94/78,928.40
  6. Step 6: Final answer
    x = 62,013.37

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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.