Home / 57,821.60-86,690.36-39,055.12

Finding the Fourth Proportional to 57,821.60, 86,690.36 and 39,055.12

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Solution

The fourth proportional to 57,821.60, 86,690.36 and 39,055.12 is: 58,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,821.60 : 86,690.36 = 39,055.12 : x
  2. Step 2: Convert to fraction form
    57,821.60/86,690.36 = 39,055.12/x
  3. Step 3: Cross multiply
    57,821.60x = 86,690.36 × 39,055.12
  4. Step 4: Simplify right side
    57,821.60x = 3,385,702,412.64
  5. Step 5: Solve for x
    x = 3,385,702,412.64/57,821.60
  6. Step 6: Final answer
    x = 58,554.28

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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.