Home / 76,831.20-106,068.83-53,085.51

Finding the Fourth Proportional to 76,831.20, 106,068.83 and 53,085.51

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Solution

The fourth proportional to 76,831.20, 106,068.83 and 53,085.51 is: 73,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.20 : 106,068.83 = 53,085.51 : x
  2. Step 2: Convert to fraction form
    76,831.20/106,068.83 = 53,085.51/x
  3. Step 3: Cross multiply
    76,831.20x = 106,068.83 × 53,085.51
  4. Step 4: Simplify right side
    76,831.20x = 5,630,717,670.23
  5. Step 5: Solve for x
    x = 5,630,717,670.23/76,831.20
  6. Step 6: Final answer
    x = 73,286.86

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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.