Home / 76,238.21-105,209.34-42,247.26

Finding the Fourth Proportional to 76,238.21, 105,209.34 and 42,247.26

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Solution

The fourth proportional to 76,238.21, 105,209.34 and 42,247.26 is: 58,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,238.21 : 105,209.34 = 42,247.26 : x
  2. Step 2: Convert to fraction form
    76,238.21/105,209.34 = 42,247.26/x
  3. Step 3: Cross multiply
    76,238.21x = 105,209.34 × 42,247.26
  4. Step 4: Simplify right side
    76,238.21x = 4,444,806,499.84
  5. Step 5: Solve for x
    x = 4,444,806,499.84/76,238.21
  6. Step 6: Final answer
    x = 58,301.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.