Home / 52,532.20-78,827.10-21,389.80

Finding the Fourth Proportional to 52,532.20, 78,827.10 and 21,389.80

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Solution

The fourth proportional to 52,532.20, 78,827.10 and 21,389.80 is: 32,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,532.20 : 78,827.10 = 21,389.80 : x
  2. Step 2: Convert to fraction form
    52,532.20/78,827.10 = 21,389.80/x
  3. Step 3: Cross multiply
    52,532.20x = 78,827.10 × 21,389.80
  4. Step 4: Simplify right side
    52,532.20x = 1,686,095,903.58
  5. Step 5: Solve for x
    x = 1,686,095,903.58/52,532.20
  6. Step 6: Final answer
    x = 32,096.43

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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.