Home / 91,913.40-126,835.74-51,628.86

Finding the Fourth Proportional to 91,913.40, 126,835.74 and 51,628.86

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Solution

The fourth proportional to 91,913.40, 126,835.74 and 51,628.86 is: 71,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,913.40 : 126,835.74 = 51,628.86 : x
  2. Step 2: Convert to fraction form
    91,913.40/126,835.74 = 51,628.86/x
  3. Step 3: Cross multiply
    91,913.40x = 126,835.74 × 51,628.86
  4. Step 4: Simplify right side
    91,913.40x = 6,548,384,663.46
  5. Step 5: Solve for x
    x = 6,548,384,663.46/91,913.40
  6. Step 6: Final answer
    x = 71,245.16

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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.