Home / 84,760.07-127,135.93-31,462.43

Finding the Fourth Proportional to 84,760.07, 127,135.93 and 31,462.43

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Solution

The fourth proportional to 84,760.07, 127,135.93 and 31,462.43 is: 47,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,760.07 : 127,135.93 = 31,462.43 : x
  2. Step 2: Convert to fraction form
    84,760.07/127,135.93 = 31,462.43/x
  3. Step 3: Cross multiply
    84,760.07x = 127,135.93 × 31,462.43
  4. Step 4: Simplify right side
    84,760.07x = 4,000,004,642.77
  5. Step 5: Solve for x
    x = 4,000,004,642.77/84,760.07
  6. Step 6: Final answer
    x = 47,192.09

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1.5x scale

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.