Home / 51,221.92-70,698-42,823.84

Finding the Fourth Proportional to 51,221.92, 70,698 and 42,823.84

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Solution

The fourth proportional to 51,221.92, 70,698 and 42,823.84 is: 59,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221.92 : 70,698 = 42,823.84 : x
  2. Step 2: Convert to fraction form
    51,221.92/70,698 = 42,823.84/x
  3. Step 3: Cross multiply
    51,221.92x = 70,698 × 42,823.84
  4. Step 4: Simplify right side
    51,221.92x = 3,027,559,840.32
  5. Step 5: Solve for x
    x = 3,027,559,840.32/51,221.92
  6. Step 6: Final answer
    x = 59,106.72

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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.