Home / 92,722.20-139,075.20-30,392.70

Finding the Fourth Proportional to 92,722.20, 139,075.20 and 30,392.70

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Solution

The fourth proportional to 92,722.20, 139,075.20 and 30,392.70 is: 45,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,722.20 : 139,075.20 = 30,392.70 : x
  2. Step 2: Convert to fraction form
    92,722.20/139,075.20 = 30,392.70/x
  3. Step 3: Cross multiply
    92,722.20x = 139,075.20 × 30,392.70
  4. Step 4: Simplify right side
    92,722.20x = 4,226,870,831.04
  5. Step 5: Solve for x
    x = 4,226,870,831.04/92,722.20
  6. Step 6: Final answer
    x = 45,586.39

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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.