Home / 68,172.03-94,123.58-42,688.62

Finding the Fourth Proportional to 68,172.03, 94,123.58 and 42,688.62

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Solution

The fourth proportional to 68,172.03, 94,123.58 and 42,688.62 is: 58,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,172.03 : 94,123.58 = 42,688.62 : x
  2. Step 2: Convert to fraction form
    68,172.03/94,123.58 = 42,688.62/x
  3. Step 3: Cross multiply
    68,172.03x = 94,123.58 × 42,688.62
  4. Step 4: Simplify right side
    68,172.03x = 4,018,005,739.66
  5. Step 5: Solve for x
    x = 4,018,005,739.66/68,172.03
  6. Step 6: Final answer
    x = 58,939.21

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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.