Home / 76,880.42-106,096.84-42,888.66

Finding the Fourth Proportional to 76,880.42, 106,096.84 and 42,888.66

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Solution

The fourth proportional to 76,880.42, 106,096.84 and 42,888.66 is: 59,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,880.42 : 106,096.84 = 42,888.66 : x
  2. Step 2: Convert to fraction form
    76,880.42/106,096.84 = 42,888.66/x
  3. Step 3: Cross multiply
    76,880.42x = 106,096.84 × 42,888.66
  4. Step 4: Simplify right side
    76,880.42x = 4,550,351,297.83
  5. Step 5: Solve for x
    x = 4,550,351,297.83/76,880.42
  6. Step 6: Final answer
    x = 59,187.39

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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.