Home / 46,451.21-64,129.23-30,581.78

Finding the Fourth Proportional to 46,451.21, 64,129.23 and 30,581.78

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Solution

The fourth proportional to 46,451.21, 64,129.23 and 30,581.78 is: 42,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,451.21 : 64,129.23 = 30,581.78 : x
  2. Step 2: Convert to fraction form
    46,451.21/64,129.23 = 30,581.78/x
  3. Step 3: Cross multiply
    46,451.21x = 64,129.23 × 30,581.78
  4. Step 4: Simplify right side
    46,451.21x = 1,961,185,682.78
  5. Step 5: Solve for x
    x = 1,961,185,682.78/46,451.21
  6. Step 6: Final answer
    x = 42,220.34

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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.