Home / 42,745.58-64,119.47-20,250.99

Finding the Fourth Proportional to 42,745.58, 64,119.47 and 20,250.99

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Solution

The fourth proportional to 42,745.58, 64,119.47 and 20,250.99 is: 30,377.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,745.58 : 64,119.47 = 20,250.99 : x
  2. Step 2: Convert to fraction form
    42,745.58/64,119.47 = 20,250.99/x
  3. Step 3: Cross multiply
    42,745.58x = 64,119.47 × 20,250.99
  4. Step 4: Simplify right side
    42,745.58x = 1,298,483,024.79
  5. Step 5: Solve for x
    x = 1,298,483,024.79/42,745.58
  6. Step 6: Final answer
    x = 30,377.01

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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.