Home / 74,016.20-111,024.30-42,912.20

Finding the Fourth Proportional to 74,016.20, 111,024.30 and 42,912.20

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Solution

The fourth proportional to 74,016.20, 111,024.30 and 42,912.20 is: 64,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,016.20 : 111,024.30 = 42,912.20 : x
  2. Step 2: Convert to fraction form
    74,016.20/111,024.30 = 42,912.20/x
  3. Step 3: Cross multiply
    74,016.20x = 111,024.30 × 42,912.20
  4. Step 4: Simplify right side
    74,016.20x = 4,764,296,966.46
  5. Step 5: Solve for x
    x = 4,764,296,966.46/74,016.20
  6. Step 6: Final answer
    x = 64,368.30

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1.5x scale

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.