Home / 55,135.96-76,087.86-29,985.40

Finding the Fourth Proportional to 55,135.96, 76,087.86 and 29,985.40

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Solution

The fourth proportional to 55,135.96, 76,087.86 and 29,985.40 is: 41,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.96 : 76,087.86 = 29,985.40 : x
  2. Step 2: Convert to fraction form
    55,135.96/76,087.86 = 29,985.40/x
  3. Step 3: Cross multiply
    55,135.96x = 76,087.86 × 29,985.40
  4. Step 4: Simplify right side
    55,135.96x = 2,281,524,917.24
  5. Step 5: Solve for x
    x = 2,281,524,917.24/55,135.96
  6. Step 6: Final answer
    x = 41,379.98

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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.