Home / 76,900.67-106,119.96-42,907.40

Finding the Fourth Proportional to 76,900.67, 106,119.96 and 42,907.40

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Solution

The fourth proportional to 76,900.67, 106,119.96 and 42,907.40 is: 59,210.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,900.67 : 106,119.96 = 42,907.40 : x
  2. Step 2: Convert to fraction form
    76,900.67/106,119.96 = 42,907.40/x
  3. Step 3: Cross multiply
    76,900.67x = 106,119.96 × 42,907.40
  4. Step 4: Simplify right side
    76,900.67x = 4,553,331,571.70
  5. Step 5: Solve for x
    x = 4,553,331,571.70/76,900.67
  6. Step 6: Final answer
    x = 59,210.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.