Home / 55,370.39-76,411.20-30,219.89

Finding the Fourth Proportional to 55,370.39, 76,411.20 and 30,219.89

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Solution

The fourth proportional to 55,370.39, 76,411.20 and 30,219.89 is: 41,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,370.39 : 76,411.20 = 30,219.89 : x
  2. Step 2: Convert to fraction form
    55,370.39/76,411.20 = 30,219.89/x
  3. Step 3: Cross multiply
    55,370.39x = 76,411.20 × 30,219.89
  4. Step 4: Simplify right side
    55,370.39x = 2,309,138,058.77
  5. Step 5: Solve for x
    x = 2,309,138,058.77/55,370.39
  6. Step 6: Final answer
    x = 41,703.48

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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.