Home / 55,435.23-83,142.78-19,416.98

Finding the Fourth Proportional to 55,435.23, 83,142.78 and 19,416.98

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Solution

The fourth proportional to 55,435.23, 83,142.78 and 19,416.98 is: 29,121.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.23 : 83,142.78 = 19,416.98 : x
  2. Step 2: Convert to fraction form
    55,435.23/83,142.78 = 19,416.98/x
  3. Step 3: Cross multiply
    55,435.23x = 83,142.78 × 19,416.98
  4. Step 4: Simplify right side
    55,435.23x = 1,614,381,280.69
  5. Step 5: Solve for x
    x = 1,614,381,280.69/55,435.23
  6. Step 6: Final answer
    x = 29,121.94

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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.