Home / 42,768.01-64,144.45-11,605.69

Finding the Fourth Proportional to 42,768.01, 64,144.45 and 11,605.69

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Solution

The fourth proportional to 42,768.01, 64,144.45 and 11,605.69 is: 17,406.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768.01 : 64,144.45 = 11,605.69 : x
  2. Step 2: Convert to fraction form
    42,768.01/64,144.45 = 11,605.69/x
  3. Step 3: Cross multiply
    42,768.01x = 64,144.45 × 11,605.69
  4. Step 4: Simplify right side
    42,768.01x = 744,440,601.92
  5. Step 5: Solve for x
    x = 744,440,601.92/42,768.01
  6. Step 6: Final answer
    x = 17,406.48

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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.