Home / 74,427.30-111,446.55-70,928.10

Finding the Fourth Proportional to 74,427.30, 111,446.55 and 70,928.10

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Solution

The fourth proportional to 74,427.30, 111,446.55 and 70,928.10 is: 106,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.30 : 111,446.55 = 70,928.10 : x
  2. Step 2: Convert to fraction form
    74,427.30/111,446.55 = 70,928.10/x
  3. Step 3: Cross multiply
    74,427.30x = 111,446.55 × 70,928.10
  4. Step 4: Simplify right side
    74,427.30x = 7,904,692,043.06
  5. Step 5: Solve for x
    x = 7,904,692,043.06/74,427.30
  6. Step 6: Final answer
    x = 106,206.89

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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.