Home / 52,315.63-78,448.87-19,012.21

Finding the Fourth Proportional to 52,315.63, 78,448.87 and 19,012.21

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Solution

The fourth proportional to 52,315.63, 78,448.87 and 19,012.21 is: 28,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,315.63 : 78,448.87 = 19,012.21 : x
  2. Step 2: Convert to fraction form
    52,315.63/78,448.87 = 19,012.21/x
  3. Step 3: Cross multiply
    52,315.63x = 78,448.87 × 19,012.21
  4. Step 4: Simplify right side
    52,315.63x = 1,491,486,390.70
  5. Step 5: Solve for x
    x = 1,491,486,390.70/52,315.63
  6. Step 6: Final answer
    x = 28,509.38

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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.