Home / 84,762.07-127,138.93-31,464.43

Finding the Fourth Proportional to 84,762.07, 127,138.93 and 31,464.43

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Solution

The fourth proportional to 84,762.07, 127,138.93 and 31,464.43 is: 47,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,762.07 : 127,138.93 = 31,464.43 : x
  2. Step 2: Convert to fraction form
    84,762.07/127,138.93 = 31,464.43/x
  3. Step 3: Cross multiply
    84,762.07x = 127,138.93 × 31,464.43
  4. Step 4: Simplify right side
    84,762.07x = 4,000,353,963.26
  5. Step 5: Solve for x
    x = 4,000,353,963.26/84,762.07
  6. Step 6: Final answer
    x = 47,195.10

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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.