Home / 51,022.58-70,408.04-28,360.80

Finding the Fourth Proportional to 51,022.58, 70,408.04 and 28,360.80

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Solution

The fourth proportional to 51,022.58, 70,408.04 and 28,360.80 is: 39,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,022.58 : 70,408.04 = 28,360.80 : x
  2. Step 2: Convert to fraction form
    51,022.58/70,408.04 = 28,360.80/x
  3. Step 3: Cross multiply
    51,022.58x = 70,408.04 × 28,360.80
  4. Step 4: Simplify right side
    51,022.58x = 1,996,828,199.03
  5. Step 5: Solve for x
    x = 1,996,828,199.03/51,022.58
  6. Step 6: Final answer
    x = 39,136.17

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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.