Home / 40,136.80-60,205.20-19,362.40

Finding the Fourth Proportional to 40,136.80, 60,205.20 and 19,362.40

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Solution

The fourth proportional to 40,136.80, 60,205.20 and 19,362.40 is: 29,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.80 : 60,205.20 = 19,362.40 : x
  2. Step 2: Convert to fraction form
    40,136.80/60,205.20 = 19,362.40/x
  3. Step 3: Cross multiply
    40,136.80x = 60,205.20 × 19,362.40
  4. Step 4: Simplify right side
    40,136.80x = 1,165,717,164.48
  5. Step 5: Solve for x
    x = 1,165,717,164.48/40,136.80
  6. Step 6: Final answer
    x = 29,043.60

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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.