Home / 55,730.74-76,908.21-30,580.66

Finding the Fourth Proportional to 55,730.74, 76,908.21 and 30,580.66

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Solution

The fourth proportional to 55,730.74, 76,908.21 and 30,580.66 is: 42,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.74 : 76,908.21 = 30,580.66 : x
  2. Step 2: Convert to fraction form
    55,730.74/76,908.21 = 30,580.66/x
  3. Step 3: Cross multiply
    55,730.74x = 76,908.21 × 30,580.66
  4. Step 4: Simplify right side
    55,730.74x = 2,351,903,821.22
  5. Step 5: Solve for x
    x = 2,351,903,821.22/55,730.74
  6. Step 6: Final answer
    x = 42,201.19

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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.