Home / 70,742.84-105,936.81-42,262.23

Finding the Fourth Proportional to 70,742.84, 105,936.81 and 42,262.23

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Solution

The fourth proportional to 70,742.84, 105,936.81 and 42,262.23 is: 63,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742.84 : 105,936.81 = 42,262.23 : x
  2. Step 2: Convert to fraction form
    70,742.84/105,936.81 = 42,262.23/x
  3. Step 3: Cross multiply
    70,742.84x = 105,936.81 × 42,262.23
  4. Step 4: Simplify right side
    70,742.84x = 4,477,125,829.69
  5. Step 5: Solve for x
    x = 4,477,125,829.69/70,742.84
  6. Step 6: Final answer
    x = 63,287.33

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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.