Home / 57,485.90-86,207.34-20,036.36

Finding the Fourth Proportional to 57,485.90, 86,207.34 and 20,036.36

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Solution

The fourth proportional to 57,485.90, 86,207.34 and 20,036.36 is: 30,047.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,485.90 : 86,207.34 = 20,036.36 : x
  2. Step 2: Convert to fraction form
    57,485.90/86,207.34 = 20,036.36/x
  3. Step 3: Cross multiply
    57,485.90x = 86,207.34 × 20,036.36
  4. Step 4: Simplify right side
    57,485.90x = 1,727,281,298.88
  5. Step 5: Solve for x
    x = 1,727,281,298.88/57,485.90
  6. Step 6: Final answer
    x = 30,047.04

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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.