Home / 76,971.12-106,196.04-45,141.36

Finding the Fourth Proportional to 76,971.12, 106,196.04 and 45,141.36

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Solution

The fourth proportional to 76,971.12, 106,196.04 and 45,141.36 is: 62,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.12 : 106,196.04 = 45,141.36 : x
  2. Step 2: Convert to fraction form
    76,971.12/106,196.04 = 45,141.36/x
  3. Step 3: Cross multiply
    76,971.12x = 106,196.04 × 45,141.36
  4. Step 4: Simplify right side
    76,971.12x = 4,793,833,672.21
  5. Step 5: Solve for x
    x = 4,793,833,672.21/76,971.12
  6. Step 6: Final answer
    x = 62,280.94

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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.