Home / 76,278.36-114,264.30-42,948.48

Finding the Fourth Proportional to 76,278.36, 114,264.30 and 42,948.48

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Solution

The fourth proportional to 76,278.36, 114,264.30 and 42,948.48 is: 64,336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,278.36 : 114,264.30 = 42,948.48 : x
  2. Step 2: Convert to fraction form
    76,278.36/114,264.30 = 42,948.48/x
  3. Step 3: Cross multiply
    76,278.36x = 114,264.30 × 42,948.48
  4. Step 4: Simplify right side
    76,278.36x = 4,907,478,003.26
  5. Step 5: Solve for x
    x = 4,907,478,003.26/76,278.36
  6. Step 6: Final answer
    x = 64,336.44

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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.