Home / 45,720.80-68,574.27-12,443.46

Finding the Fourth Proportional to 45,720.80, 68,574.27 and 12,443.46

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Solution

The fourth proportional to 45,720.80, 68,574.27 and 12,443.46 is: 18,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,720.80 : 68,574.27 = 12,443.46 : x
  2. Step 2: Convert to fraction form
    45,720.80/68,574.27 = 12,443.46/x
  3. Step 3: Cross multiply
    45,720.80x = 68,574.27 × 12,443.46
  4. Step 4: Simplify right side
    45,720.80x = 853,301,216.88
  5. Step 5: Solve for x
    x = 853,301,216.88/45,720.80
  6. Step 6: Final answer
    x = 18,663.30

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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.