Home / 76,734.95-105,899.09-43,203.11

Finding the Fourth Proportional to 76,734.95, 105,899.09 and 43,203.11

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Solution

The fourth proportional to 76,734.95, 105,899.09 and 43,203.11 is: 59,623.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,734.95 : 105,899.09 = 43,203.11 : x
  2. Step 2: Convert to fraction form
    76,734.95/105,899.09 = 43,203.11/x
  3. Step 3: Cross multiply
    76,734.95x = 105,899.09 × 43,203.11
  4. Step 4: Simplify right side
    76,734.95x = 4,575,169,288.66
  5. Step 5: Solve for x
    x = 4,575,169,288.66/76,734.95
  6. Step 6: Final answer
    x = 59,623.02

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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.