Home / 45,570.99-68,358.57-13,978.74

Finding the Fourth Proportional to 45,570.99, 68,358.57 and 13,978.74

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Solution

The fourth proportional to 45,570.99, 68,358.57 and 13,978.74 is: 20,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,570.99 : 68,358.57 = 13,978.74 : x
  2. Step 2: Convert to fraction form
    45,570.99/68,358.57 = 13,978.74/x
  3. Step 3: Cross multiply
    45,570.99x = 68,358.57 × 13,978.74
  4. Step 4: Simplify right side
    45,570.99x = 955,566,676.80
  5. Step 5: Solve for x
    x = 955,566,676.80/45,570.99
  6. Step 6: Final answer
    x = 20,968.75

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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.