Home / 40,742.90-61,114.40-11,160.99

Finding the Fourth Proportional to 40,742.90, 61,114.40 and 11,160.99

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Solution

The fourth proportional to 40,742.90, 61,114.40 and 11,160.99 is: 16,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742.90 : 61,114.40 = 11,160.99 : x
  2. Step 2: Convert to fraction form
    40,742.90/61,114.40 = 11,160.99/x
  3. Step 3: Cross multiply
    40,742.90x = 61,114.40 × 11,160.99
  4. Step 4: Simplify right side
    40,742.90x = 682,097,207.26
  5. Step 5: Solve for x
    x = 682,097,207.26/40,742.90
  6. Step 6: Final answer
    x = 16,741.50

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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.