Home / 55,419.40-76,478.86-31,546.07

Finding the Fourth Proportional to 55,419.40, 76,478.86 and 31,546.07

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Solution

The fourth proportional to 55,419.40, 76,478.86 and 31,546.07 is: 43,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.40 : 76,478.86 = 31,546.07 : x
  2. Step 2: Convert to fraction form
    55,419.40/76,478.86 = 31,546.07/x
  3. Step 3: Cross multiply
    55,419.40x = 76,478.86 × 31,546.07
  4. Step 4: Simplify right side
    55,419.40x = 2,412,607,756.38
  5. Step 5: Solve for x
    x = 2,412,607,756.38/55,419.40
  6. Step 6: Final answer
    x = 43,533.63

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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.