Home / 55,216.89-76,197.63-30,687.62

Finding the Fourth Proportional to 55,216.89, 76,197.63 and 30,687.62

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Solution

The fourth proportional to 55,216.89, 76,197.63 and 30,687.62 is: 42,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,216.89 : 76,197.63 = 30,687.62 : x
  2. Step 2: Convert to fraction form
    55,216.89/76,197.63 = 30,687.62/x
  3. Step 3: Cross multiply
    55,216.89x = 76,197.63 × 30,687.62
  4. Step 4: Simplify right side
    55,216.89x = 2,338,323,648.43
  5. Step 5: Solve for x
    x = 2,338,323,648.43/55,216.89
  6. Step 6: Final answer
    x = 42,347.98

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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.