Home / 70,707.42-106,089.89-45,435.27

Finding the Fourth Proportional to 70,707.42, 106,089.89 and 45,435.27

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Solution

The fourth proportional to 70,707.42, 106,089.89 and 45,435.27 is: 68,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,707.42 : 106,089.89 = 45,435.27 : x
  2. Step 2: Convert to fraction form
    70,707.42/106,089.89 = 45,435.27/x
  3. Step 3: Cross multiply
    70,707.42x = 106,089.89 × 45,435.27
  4. Step 4: Simplify right side
    70,707.42x = 4,820,222,412.82
  5. Step 5: Solve for x
    x = 4,820,222,412.82/70,707.42
  6. Step 6: Final answer
    x = 68,171.38

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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.