Home / 70,441.04-105,755.40-40,880.09

Finding the Fourth Proportional to 70,441.04, 105,755.40 and 40,880.09

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Solution

The fourth proportional to 70,441.04, 105,755.40 and 40,880.09 is: 61,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441.04 : 105,755.40 = 40,880.09 : x
  2. Step 2: Convert to fraction form
    70,441.04/105,755.40 = 40,880.09/x
  3. Step 3: Cross multiply
    70,441.04x = 105,755.40 × 40,880.09
  4. Step 4: Simplify right side
    70,441.04x = 4,323,289,741.21
  5. Step 5: Solve for x
    x = 4,323,289,741.21/70,441.04
  6. Step 6: Final answer
    x = 61,374.59

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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.