Home / 79,989.12-120,018.71-37,899.24

Finding the Fourth Proportional to 79,989.12, 120,018.71 and 37,899.24

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Solution

The fourth proportional to 79,989.12, 120,018.71 and 37,899.24 is: 56,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,989.12 : 120,018.71 = 37,899.24 : x
  2. Step 2: Convert to fraction form
    79,989.12/120,018.71 = 37,899.24/x
  3. Step 3: Cross multiply
    79,989.12x = 120,018.71 × 37,899.24
  4. Step 4: Simplify right side
    79,989.12x = 4,548,618,214.56
  5. Step 5: Solve for x
    x = 4,548,618,214.56/79,989.12
  6. Step 6: Final answer
    x = 56,865.46

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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.