Home / 55,073.38-76,000.99-31,200.01

Finding the Fourth Proportional to 55,073.38, 76,000.99 and 31,200.01

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Solution

The fourth proportional to 55,073.38, 76,000.99 and 31,200.01 is: 43,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,073.38 : 76,000.99 = 31,200.01 : x
  2. Step 2: Convert to fraction form
    55,073.38/76,000.99 = 31,200.01/x
  3. Step 3: Cross multiply
    55,073.38x = 76,000.99 × 31,200.01
  4. Step 4: Simplify right side
    55,073.38x = 2,371,231,648.01
  5. Step 5: Solve for x
    x = 2,371,231,648.01/55,073.38
  6. Step 6: Final answer
    x = 43,055.86

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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.