Home / 90,458.88-135,688.67-37,831.46

Finding the Fourth Proportional to 90,458.88, 135,688.67 and 37,831.46

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Solution

The fourth proportional to 90,458.88, 135,688.67 and 37,831.46 is: 56,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,458.88 : 135,688.67 = 37,831.46 : x
  2. Step 2: Convert to fraction form
    90,458.88/135,688.67 = 37,831.46/x
  3. Step 3: Cross multiply
    90,458.88x = 135,688.67 × 37,831.46
  4. Step 4: Simplify right side
    90,458.88x = 5,133,299,765.83
  5. Step 5: Solve for x
    x = 5,133,299,765.83/90,458.88
  6. Step 6: Final answer
    x = 56,747.33

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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.