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Finding the Fourth Proportional to 45,810.80, 68,726.02 and 14,220.20

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Solution

The fourth proportional to 45,810.80, 68,726.02 and 14,220.20 is: 21,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,810.80 : 68,726.02 = 14,220.20 : x
  2. Step 2: Convert to fraction form
    45,810.80/68,726.02 = 14,220.20/x
  3. Step 3: Cross multiply
    45,810.80x = 68,726.02 × 14,220.20
  4. Step 4: Simplify right side
    45,810.80x = 977,297,749.60
  5. Step 5: Solve for x
    x = 977,297,749.60/45,810.80
  6. Step 6: Final answer
    x = 21,333.35

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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.