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Finding the Fourth Proportional to 45,584.80, 68,386.80 and 14,423.20

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Solution

The fourth proportional to 45,584.80, 68,386.80 and 14,423.20 is: 21,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,584.80 : 68,386.80 = 14,423.20 : x
  2. Step 2: Convert to fraction form
    45,584.80/68,386.80 = 14,423.20/x
  3. Step 3: Cross multiply
    45,584.80x = 68,386.80 × 14,423.20
  4. Step 4: Simplify right side
    45,584.80x = 986,356,493.76
  5. Step 5: Solve for x
    x = 986,356,493.76/45,584.80
  6. Step 6: Final answer
    x = 21,637.84

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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.