Home / 51,121.26-70,530.93-30,971.70

Finding the Fourth Proportional to 51,121.26, 70,530.93 and 30,971.70

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Solution

The fourth proportional to 51,121.26, 70,530.93 and 30,971.70 is: 42,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,121.26 : 70,530.93 = 30,971.70 : x
  2. Step 2: Convert to fraction form
    51,121.26/70,530.93 = 30,971.70/x
  3. Step 3: Cross multiply
    51,121.26x = 70,530.93 × 30,971.70
  4. Step 4: Simplify right side
    51,121.26x = 2,184,462,804.68
  5. Step 5: Solve for x
    x = 2,184,462,804.68/51,121.26
  6. Step 6: Final answer
    x = 42,731.00

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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.