Home / 70,816.05-106,223.04-28,695.78

Finding the Fourth Proportional to 70,816.05, 106,223.04 and 28,695.78

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Solution

The fourth proportional to 70,816.05, 106,223.04 and 28,695.78 is: 43,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,816.05 : 106,223.04 = 28,695.78 : x
  2. Step 2: Convert to fraction form
    70,816.05/106,223.04 = 28,695.78/x
  3. Step 3: Cross multiply
    70,816.05x = 106,223.04 × 28,695.78
  4. Step 4: Simplify right side
    70,816.05x = 3,048,152,986.77
  5. Step 5: Solve for x
    x = 3,048,152,986.77/70,816.05
  6. Step 6: Final answer
    x = 43,043.25

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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.