Home / 45,827.60-68,741.40-21,203.60

Finding the Fourth Proportional to 45,827.60, 68,741.40 and 21,203.60

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Solution

The fourth proportional to 45,827.60, 68,741.40 and 21,203.60 is: 31,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,827.60 : 68,741.40 = 21,203.60 : x
  2. Step 2: Convert to fraction form
    45,827.60/68,741.40 = 21,203.60/x
  3. Step 3: Cross multiply
    45,827.60x = 68,741.40 × 21,203.60
  4. Step 4: Simplify right side
    45,827.60x = 1,457,565,149.04
  5. Step 5: Solve for x
    x = 1,457,565,149.04/45,827.60
  6. Step 6: Final answer
    x = 31,805.40

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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.