Home / 86,831.36-130,236.48-36,931.52

Finding the Fourth Proportional to 86,831.36, 130,236.48 and 36,931.52

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Solution

The fourth proportional to 86,831.36, 130,236.48 and 36,931.52 is: 55,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831.36 : 130,236.48 = 36,931.52 : x
  2. Step 2: Convert to fraction form
    86,831.36/130,236.48 = 36,931.52/x
  3. Step 3: Cross multiply
    86,831.36x = 130,236.48 × 36,931.52
  4. Step 4: Simplify right side
    86,831.36x = 4,809,831,165.85
  5. Step 5: Solve for x
    x = 4,809,831,165.85/86,831.36
  6. Step 6: Final answer
    x = 55,392.79

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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.