Home / 61,120.32-91,609.53-23,145.45

Finding the Fourth Proportional to 61,120.32, 91,609.53 and 23,145.45

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Solution

The fourth proportional to 61,120.32, 91,609.53 and 23,145.45 is: 34,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,120.32 : 91,609.53 = 23,145.45 : x
  2. Step 2: Convert to fraction form
    61,120.32/91,609.53 = 23,145.45/x
  3. Step 3: Cross multiply
    61,120.32x = 91,609.53 × 23,145.45
  4. Step 4: Simplify right side
    61,120.32x = 2,120,343,796.14
  5. Step 5: Solve for x
    x = 2,120,343,796.14/61,120.32
  6. Step 6: Final answer
    x = 34,691.31

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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.