Home / 94,818.78-142,228.10-28,257.20

Finding the Fourth Proportional to 94,818.78, 142,228.10 and 28,257.20

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Solution

The fourth proportional to 94,818.78, 142,228.10 and 28,257.20 is: 42,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,818.78 : 142,228.10 = 28,257.20 : x
  2. Step 2: Convert to fraction form
    94,818.78/142,228.10 = 28,257.20/x
  3. Step 3: Cross multiply
    94,818.78x = 142,228.10 × 28,257.20
  4. Step 4: Simplify right side
    94,818.78x = 4,018,967,867.32
  5. Step 5: Solve for x
    x = 4,018,967,867.32/94,818.78
  6. Step 6: Final answer
    x = 42,385.78

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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.