Home / 55,416.87-76,475.37-31,543.54

Finding the Fourth Proportional to 55,416.87, 76,475.37 and 31,543.54

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Solution

The fourth proportional to 55,416.87, 76,475.37 and 31,543.54 is: 43,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416.87 : 76,475.37 = 31,543.54 : x
  2. Step 2: Convert to fraction form
    55,416.87/76,475.37 = 31,543.54/x
  3. Step 3: Cross multiply
    55,416.87x = 76,475.37 × 31,543.54
  4. Step 4: Simplify right side
    55,416.87x = 2,412,303,983.73
  5. Step 5: Solve for x
    x = 2,412,303,983.73/55,416.87
  6. Step 6: Final answer
    x = 43,530.14

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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.