Home / 77,945.58-116,889.66-28,012.32

Finding the Fourth Proportional to 77,945.58, 116,889.66 and 28,012.32

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Solution

The fourth proportional to 77,945.58, 116,889.66 and 28,012.32 is: 42,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.58 : 116,889.66 = 28,012.32 : x
  2. Step 2: Convert to fraction form
    77,945.58/116,889.66 = 28,012.32/x
  3. Step 3: Cross multiply
    77,945.58x = 116,889.66 × 28,012.32
  4. Step 4: Simplify right side
    77,945.58x = 3,274,350,560.61
  5. Step 5: Solve for x
    x = 3,274,350,560.61/77,945.58
  6. Step 6: Final answer
    x = 42,008.16

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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.