Home / 52,110.96-78,181.02-20,968.08

Finding the Fourth Proportional to 52,110.96, 78,181.02 and 20,968.08

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Solution

The fourth proportional to 52,110.96, 78,181.02 and 20,968.08 is: 31,457.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,110.96 : 78,181.02 = 20,968.08 : x
  2. Step 2: Convert to fraction form
    52,110.96/78,181.02 = 20,968.08/x
  3. Step 3: Cross multiply
    52,110.96x = 78,181.02 × 20,968.08
  4. Step 4: Simplify right side
    52,110.96x = 1,639,305,881.84
  5. Step 5: Solve for x
    x = 1,639,305,881.84/52,110.96
  6. Step 6: Final answer
    x = 31,457.99

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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.