Home / 70,435.04-105,746.40-40,874.09

Finding the Fourth Proportional to 70,435.04, 105,746.40 and 40,874.09

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Solution

The fourth proportional to 70,435.04, 105,746.40 and 40,874.09 is: 61,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,435.04 : 105,746.40 = 40,874.09 : x
  2. Step 2: Convert to fraction form
    70,435.04/105,746.40 = 40,874.09/x
  3. Step 3: Cross multiply
    70,435.04x = 105,746.40 × 40,874.09
  4. Step 4: Simplify right side
    70,435.04x = 4,322,287,342.04
  5. Step 5: Solve for x
    x = 4,322,287,342.04/70,435.04
  6. Step 6: Final answer
    x = 61,365.59

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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.