Home / 80,056.36-120,090.78-46,779.88

Finding the Fourth Proportional to 80,056.36, 120,090.78 and 46,779.88

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Solution

The fourth proportional to 80,056.36, 120,090.78 and 46,779.88 is: 70,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,056.36 : 120,090.78 = 46,779.88 : x
  2. Step 2: Convert to fraction form
    80,056.36/120,090.78 = 46,779.88/x
  3. Step 3: Cross multiply
    80,056.36x = 120,090.78 × 46,779.88
  4. Step 4: Simplify right side
    80,056.36x = 5,617,832,277.51
  5. Step 5: Solve for x
    x = 5,617,832,277.51/80,056.36
  6. Step 6: Final answer
    x = 70,173.47

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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.