Home / 51,311.34-70,808.58-28,649.70

Finding the Fourth Proportional to 51,311.34, 70,808.58 and 28,649.70

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Solution

The fourth proportional to 51,311.34, 70,808.58 and 28,649.70 is: 39,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.34 : 70,808.58 = 28,649.70 : x
  2. Step 2: Convert to fraction form
    51,311.34/70,808.58 = 28,649.70/x
  3. Step 3: Cross multiply
    51,311.34x = 70,808.58 × 28,649.70
  4. Step 4: Simplify right side
    51,311.34x = 2,028,644,574.43
  5. Step 5: Solve for x
    x = 2,028,644,574.43/51,311.34
  6. Step 6: Final answer
    x = 39,535.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.