Home / 55,354.40-76,388.88-30,203.92

Finding the Fourth Proportional to 55,354.40, 76,388.88 and 30,203.92

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Solution

The fourth proportional to 55,354.40, 76,388.88 and 30,203.92 is: 41,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,354.40 : 76,388.88 = 30,203.92 : x
  2. Step 2: Convert to fraction form
    55,354.40/76,388.88 = 30,203.92/x
  3. Step 3: Cross multiply
    55,354.40x = 76,388.88 × 30,203.92
  4. Step 4: Simplify right side
    55,354.40x = 2,307,243,620.41
  5. Step 5: Solve for x
    x = 2,307,243,620.41/55,354.40
  6. Step 6: Final answer
    x = 41,681.30

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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.