Home / 55,603.12-76,732.40-30,109.76

Finding the Fourth Proportional to 55,603.12, 76,732.40 and 30,109.76

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Solution

The fourth proportional to 55,603.12, 76,732.40 and 30,109.76 is: 41,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,603.12 : 76,732.40 = 30,109.76 : x
  2. Step 2: Convert to fraction form
    55,603.12/76,732.40 = 30,109.76/x
  3. Step 3: Cross multiply
    55,603.12x = 76,732.40 × 30,109.76
  4. Step 4: Simplify right side
    55,603.12x = 2,310,394,148.22
  5. Step 5: Solve for x
    x = 2,310,394,148.22/55,603.12
  6. Step 6: Final answer
    x = 41,551.52

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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.