Home / 84,740.76-127,118.62-31,433.34

Finding the Fourth Proportional to 84,740.76, 127,118.62 and 31,433.34

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Solution

The fourth proportional to 84,740.76, 127,118.62 and 31,433.34 is: 47,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.76 : 127,118.62 = 31,433.34 : x
  2. Step 2: Convert to fraction form
    84,740.76/127,118.62 = 31,433.34/x
  3. Step 3: Cross multiply
    84,740.76x = 127,118.62 × 31,433.34
  4. Step 4: Simplify right side
    84,740.76x = 3,995,762,784.44
  5. Step 5: Solve for x
    x = 3,995,762,784.44/84,740.76
  6. Step 6: Final answer
    x = 47,152.79

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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.