Home / 99,477.28-149,016.03-49,405.90

Finding the Fourth Proportional to 99,477.28, 149,016.03 and 49,405.90

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Solution

The fourth proportional to 99,477.28, 149,016.03 and 49,405.90 is: 74,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,477.28 : 149,016.03 = 49,405.90 : x
  2. Step 2: Convert to fraction form
    99,477.28/149,016.03 = 49,405.90/x
  3. Step 3: Cross multiply
    99,477.28x = 149,016.03 × 49,405.90
  4. Step 4: Simplify right side
    99,477.28x = 7,362,271,076.58
  5. Step 5: Solve for x
    x = 7,362,271,076.58/99,477.28
  6. Step 6: Final answer
    x = 74,009.57

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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.