Home / 62,420.63-86,140.78-34,126.31

Finding the Fourth Proportional to 62,420.63, 86,140.78 and 34,126.31

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Solution

The fourth proportional to 62,420.63, 86,140.78 and 34,126.31 is: 47,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,420.63 : 86,140.78 = 34,126.31 : x
  2. Step 2: Convert to fraction form
    62,420.63/86,140.78 = 34,126.31/x
  3. Step 3: Cross multiply
    62,420.63x = 86,140.78 × 34,126.31
  4. Step 4: Simplify right side
    62,420.63x = 2,939,667,091.96
  5. Step 5: Solve for x
    x = 2,939,667,091.96/62,420.63
  6. Step 6: Final answer
    x = 47,094.48

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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.