Home / 55,455.84-76,528.89-30,305.34

Finding the Fourth Proportional to 55,455.84, 76,528.89 and 30,305.34

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Solution

The fourth proportional to 55,455.84, 76,528.89 and 30,305.34 is: 41,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,455.84 : 76,528.89 = 30,305.34 : x
  2. Step 2: Convert to fraction form
    55,455.84/76,528.89 = 30,305.34/x
  3. Step 3: Cross multiply
    55,455.84x = 76,528.89 × 30,305.34
  4. Step 4: Simplify right side
    55,455.84x = 2,319,234,031.27
  5. Step 5: Solve for x
    x = 2,319,234,031.27/55,455.84
  6. Step 6: Final answer
    x = 41,821.28

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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.