Home / 84,628.20-126,884.70-40,276.20

Finding the Fourth Proportional to 84,628.20, 126,884.70 and 40,276.20

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Solution

The fourth proportional to 84,628.20, 126,884.70 and 40,276.20 is: 60,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,628.20 : 126,884.70 = 40,276.20 : x
  2. Step 2: Convert to fraction form
    84,628.20/126,884.70 = 40,276.20/x
  3. Step 3: Cross multiply
    84,628.20x = 126,884.70 × 40,276.20
  4. Step 4: Simplify right side
    84,628.20x = 5,110,433,554.14
  5. Step 5: Solve for x
    x = 5,110,433,554.14/84,628.20
  6. Step 6: Final answer
    x = 60,386.89

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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.