Home / 51,326.78-70,316.51-49,407.89

Finding the Fourth Proportional to 51,326.78, 70,316.51 and 49,407.89

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Solution

The fourth proportional to 51,326.78, 70,316.51 and 49,407.89 is: 67,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,326.78 : 70,316.51 = 49,407.89 : x
  2. Step 2: Convert to fraction form
    51,326.78/70,316.51 = 49,407.89/x
  3. Step 3: Cross multiply
    51,326.78x = 70,316.51 × 49,407.89
  4. Step 4: Simplify right side
    51,326.78x = 3,474,189,792.64
  5. Step 5: Solve for x
    x = 3,474,189,792.64/51,326.78
  6. Step 6: Final answer
    x = 67,687.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.