Home / 55,148.49-76,108.66-31,276.69

Finding the Fourth Proportional to 55,148.49, 76,108.66 and 31,276.69

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Solution

The fourth proportional to 55,148.49, 76,108.66 and 31,276.69 is: 43,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,148.49 : 76,108.66 = 31,276.69 : x
  2. Step 2: Convert to fraction form
    55,148.49/76,108.66 = 31,276.69/x
  3. Step 3: Cross multiply
    55,148.49x = 76,108.66 × 31,276.69
  4. Step 4: Simplify right side
    55,148.49x = 2,380,426,696.67
  5. Step 5: Solve for x
    x = 2,380,426,696.67/55,148.49
  6. Step 6: Final answer
    x = 43,163.95

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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.