Home / 84,384.40-126,638.88-40,011.31

Finding the Fourth Proportional to 84,384.40, 126,638.88 and 40,011.31

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Solution

The fourth proportional to 84,384.40, 126,638.88 and 40,011.31 is: 60,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,384.40 : 126,638.88 = 40,011.31 : x
  2. Step 2: Convert to fraction form
    84,384.40/126,638.88 = 40,011.31/x
  3. Step 3: Cross multiply
    84,384.40x = 126,638.88 × 40,011.31
  4. Step 4: Simplify right side
    84,384.40x = 5,066,986,852.54
  5. Step 5: Solve for x
    x = 5,066,986,852.54/84,384.40
  6. Step 6: Final answer
    x = 60,046.49

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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.