Home / 55,308.05-76,325.18-30,157.55

Finding the Fourth Proportional to 55,308.05, 76,325.18 and 30,157.55

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Solution

The fourth proportional to 55,308.05, 76,325.18 and 30,157.55 is: 41,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.05 : 76,325.18 = 30,157.55 : x
  2. Step 2: Convert to fraction form
    55,308.05/76,325.18 = 30,157.55/x
  3. Step 3: Cross multiply
    55,308.05x = 76,325.18 × 30,157.55
  4. Step 4: Simplify right side
    55,308.05x = 2,301,780,432.11
  5. Step 5: Solve for x
    x = 2,301,780,432.11/55,308.05
  6. Step 6: Final answer
    x = 41,617.46

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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.