Home / 42,900.04-64,350.06-11,735.56

Finding the Fourth Proportional to 42,900.04, 64,350.06 and 11,735.56

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Solution

The fourth proportional to 42,900.04, 64,350.06 and 11,735.56 is: 17,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900.04 : 64,350.06 = 11,735.56 : x
  2. Step 2: Convert to fraction form
    42,900.04/64,350.06 = 11,735.56/x
  3. Step 3: Cross multiply
    42,900.04x = 64,350.06 × 11,735.56
  4. Step 4: Simplify right side
    42,900.04x = 755,183,990.13
  5. Step 5: Solve for x
    x = 755,183,990.13/42,900.04
  6. Step 6: Final answer
    x = 17,603.34

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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.