Home / 45,619.92-68,430.24-12,340.26

Finding the Fourth Proportional to 45,619.92, 68,430.24 and 12,340.26

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Solution

The fourth proportional to 45,619.92, 68,430.24 and 12,340.26 is: 18,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,619.92 : 68,430.24 = 12,340.26 : x
  2. Step 2: Convert to fraction form
    45,619.92/68,430.24 = 12,340.26/x
  3. Step 3: Cross multiply
    45,619.92x = 68,430.24 × 12,340.26
  4. Step 4: Simplify right side
    45,619.92x = 844,446,953.46
  5. Step 5: Solve for x
    x = 844,446,953.46/45,619.92
  6. Step 6: Final answer
    x = 18,510.49

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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.