Home / 75,860.10-104,664.30-48,978.06

Finding the Fourth Proportional to 75,860.10, 104,664.30 and 48,978.06

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Solution

The fourth proportional to 75,860.10, 104,664.30 and 48,978.06 is: 67,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,860.10 : 104,664.30 = 48,978.06 : x
  2. Step 2: Convert to fraction form
    75,860.10/104,664.30 = 48,978.06/x
  3. Step 3: Cross multiply
    75,860.10x = 104,664.30 × 48,978.06
  4. Step 4: Simplify right side
    75,860.10x = 5,126,254,365.26
  5. Step 5: Solve for x
    x = 5,126,254,365.26/75,860.10
  6. Step 6: Final answer
    x = 67,575.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.