Home / 51,129.57-70,544.58-30,706.18

Finding the Fourth Proportional to 51,129.57, 70,544.58 and 30,706.18

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Solution

The fourth proportional to 51,129.57, 70,544.58 and 30,706.18 is: 42,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,129.57 : 70,544.58 = 30,706.18 : x
  2. Step 2: Convert to fraction form
    51,129.57/70,544.58 = 30,706.18/x
  3. Step 3: Cross multiply
    51,129.57x = 70,544.58 × 30,706.18
  4. Step 4: Simplify right side
    51,129.57x = 2,166,154,571.50
  5. Step 5: Solve for x
    x = 2,166,154,571.50/51,129.57
  6. Step 6: Final answer
    x = 42,365.98

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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.