Home / 57,515.16-86,271.88-18,074.64

Finding the Fourth Proportional to 57,515.16, 86,271.88 and 18,074.64

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Solution

The fourth proportional to 57,515.16, 86,271.88 and 18,074.64 is: 27,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.16 : 86,271.88 = 18,074.64 : x
  2. Step 2: Convert to fraction form
    57,515.16/86,271.88 = 18,074.64/x
  3. Step 3: Cross multiply
    57,515.16x = 86,271.88 × 18,074.64
  4. Step 4: Simplify right side
    57,515.16x = 1,559,333,173.12
  5. Step 5: Solve for x
    x = 1,559,333,173.12/57,515.16
  6. Step 6: Final answer
    x = 27,111.69

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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.