Home / 80,345.93-110,739.02-53,440.36

Finding the Fourth Proportional to 80,345.93, 110,739.02 and 53,440.36

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Solution

The fourth proportional to 80,345.93, 110,739.02 and 53,440.36 is: 73,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,345.93 : 110,739.02 = 53,440.36 : x
  2. Step 2: Convert to fraction form
    80,345.93/110,739.02 = 53,440.36/x
  3. Step 3: Cross multiply
    80,345.93x = 110,739.02 × 53,440.36
  4. Step 4: Simplify right side
    80,345.93x = 5,917,932,550.80
  5. Step 5: Solve for x
    x = 5,917,932,550.80/80,345.93
  6. Step 6: Final answer
    x = 73,655.67

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1.5x scale

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.