Home / 55,308.16-76,325.76-30,157.76

Finding the Fourth Proportional to 55,308.16, 76,325.76 and 30,157.76

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Solution

The fourth proportional to 55,308.16, 76,325.76 and 30,157.76 is: 41,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.16 : 76,325.76 = 30,157.76 : x
  2. Step 2: Convert to fraction form
    55,308.16/76,325.76 = 30,157.76/x
  3. Step 3: Cross multiply
    55,308.16x = 76,325.76 × 30,157.76
  4. Step 4: Simplify right side
    55,308.16x = 2,301,813,951.90
  5. Step 5: Solve for x
    x = 2,301,813,951.90/55,308.16
  6. Step 6: Final answer
    x = 41,617.98

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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.