Home / 81,164.15-112,004.44-45,354.45

Finding the Fourth Proportional to 81,164.15, 112,004.44 and 45,354.45

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Solution

The fourth proportional to 81,164.15, 112,004.44 and 45,354.45 is: 62,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.15 : 112,004.44 = 45,354.45 : x
  2. Step 2: Convert to fraction form
    81,164.15/112,004.44 = 45,354.45/x
  3. Step 3: Cross multiply
    81,164.15x = 112,004.44 × 45,354.45
  4. Step 4: Simplify right side
    81,164.15x = 5,079,899,940.38
  5. Step 5: Solve for x
    x = 5,079,899,940.38/81,164.15
  6. Step 6: Final answer
    x = 62,587.98

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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.