Home / 77,340.12-116,010.06-21,180.66

Finding the Fourth Proportional to 77,340.12, 116,010.06 and 21,180.66

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Solution

The fourth proportional to 77,340.12, 116,010.06 and 21,180.66 is: 31,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,340.12 : 116,010.06 = 21,180.66 : x
  2. Step 2: Convert to fraction form
    77,340.12/116,010.06 = 21,180.66/x
  3. Step 3: Cross multiply
    77,340.12x = 116,010.06 × 21,180.66
  4. Step 4: Simplify right side
    77,340.12x = 2,457,169,637.44
  5. Step 5: Solve for x
    x = 2,457,169,637.44/77,340.12
  6. Step 6: Final answer
    x = 31,770.96

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1.5x scale

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.