Home / 74,347.25-102,645.65-51,103.69

Finding the Fourth Proportional to 74,347.25, 102,645.65 and 51,103.69

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Solution

The fourth proportional to 74,347.25, 102,645.65 and 51,103.69 is: 70,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,347.25 : 102,645.65 = 51,103.69 : x
  2. Step 2: Convert to fraction form
    74,347.25/102,645.65 = 51,103.69/x
  3. Step 3: Cross multiply
    74,347.25x = 102,645.65 × 51,103.69
  4. Step 4: Simplify right side
    74,347.25x = 5,245,571,638.52
  5. Step 5: Solve for x
    x = 5,245,571,638.52/74,347.25
  6. Step 6: Final answer
    x = 70,555.02

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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.