Home / 84,521.63-126,826.19-42,968.63

Finding the Fourth Proportional to 84,521.63, 126,826.19 and 42,968.63

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Solution

The fourth proportional to 84,521.63, 126,826.19 and 42,968.63 is: 64,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,521.63 : 126,826.19 = 42,968.63 : x
  2. Step 2: Convert to fraction form
    84,521.63/126,826.19 = 42,968.63/x
  3. Step 3: Cross multiply
    84,521.63x = 126,826.19 × 42,968.63
  4. Step 4: Simplify right side
    84,521.63x = 5,449,546,783.45
  5. Step 5: Solve for x
    x = 5,449,546,783.45/84,521.63
  6. Step 6: Final answer
    x = 64,475.18

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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.