Home / 53,108.06-79,711.32-26,831.30

Finding the Fourth Proportional to 53,108.06, 79,711.32 and 26,831.30

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Solution

The fourth proportional to 53,108.06, 79,711.32 and 26,831.30 is: 40,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,108.06 : 79,711.32 = 26,831.30 : x
  2. Step 2: Convert to fraction form
    53,108.06/79,711.32 = 26,831.30/x
  3. Step 3: Cross multiply
    53,108.06x = 79,711.32 × 26,831.30
  4. Step 4: Simplify right side
    53,108.06x = 2,138,758,340.32
  5. Step 5: Solve for x
    x = 2,138,758,340.32/53,108.06
  6. Step 6: Final answer
    x = 40,271.82

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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.