Home / 55,308.39-76,325.40-30,157.89

Finding the Fourth Proportional to 55,308.39, 76,325.40 and 30,157.89

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Solution

The fourth proportional to 55,308.39, 76,325.40 and 30,157.89 is: 41,617.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.39 : 76,325.40 = 30,157.89 : x
  2. Step 2: Convert to fraction form
    55,308.39/76,325.40 = 30,157.89/x
  3. Step 3: Cross multiply
    55,308.39x = 76,325.40 × 30,157.89
  4. Step 4: Simplify right side
    55,308.39x = 2,301,813,017.41
  5. Step 5: Solve for x
    x = 2,301,813,017.41/55,308.39
  6. Step 6: Final answer
    x = 41,617.79

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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.