Home / 55,365.12-76,406.35-31,174.40

Finding the Fourth Proportional to 55,365.12, 76,406.35 and 31,174.40

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Solution

The fourth proportional to 55,365.12, 76,406.35 and 31,174.40 is: 43,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,365.12 : 76,406.35 = 31,174.40 : x
  2. Step 2: Convert to fraction form
    55,365.12/76,406.35 = 31,174.40/x
  3. Step 3: Cross multiply
    55,365.12x = 76,406.35 × 31,174.40
  4. Step 4: Simplify right side
    55,365.12x = 2,381,921,961.57
  5. Step 5: Solve for x
    x = 2,381,921,961.57/55,365.12
  6. Step 6: Final answer
    x = 43,022.07

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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.