Home / 49,360.40-74,040.60-19,782.80

Finding the Fourth Proportional to 49,360.40, 74,040.60 and 19,782.80

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Solution

The fourth proportional to 49,360.40, 74,040.60 and 19,782.80 is: 29,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,360.40 : 74,040.60 = 19,782.80 : x
  2. Step 2: Convert to fraction form
    49,360.40/74,040.60 = 19,782.80/x
  3. Step 3: Cross multiply
    49,360.40x = 74,040.60 × 19,782.80
  4. Step 4: Simplify right side
    49,360.40x = 1,464,730,381.68
  5. Step 5: Solve for x
    x = 1,464,730,381.68/49,360.40
  6. Step 6: Final answer
    x = 29,674.20

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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.