Home / 45,849.51-68,768.19-20,862.63

Finding the Fourth Proportional to 45,849.51, 68,768.19 and 20,862.63

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Solution

The fourth proportional to 45,849.51, 68,768.19 and 20,862.63 is: 31,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,849.51 : 68,768.19 = 20,862.63 : x
  2. Step 2: Convert to fraction form
    45,849.51/68,768.19 = 20,862.63/x
  3. Step 3: Cross multiply
    45,849.51x = 68,768.19 × 20,862.63
  4. Step 4: Simplify right side
    45,849.51x = 1,434,685,303.74
  5. Step 5: Solve for x
    x = 1,434,685,303.74/45,849.51
  6. Step 6: Final answer
    x = 31,291.18

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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.