Home / 85,146.27-127,675.05-31,794.38

Finding the Fourth Proportional to 85,146.27, 127,675.05 and 31,794.38

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Solution

The fourth proportional to 85,146.27, 127,675.05 and 31,794.38 is: 47,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.27 : 127,675.05 = 31,794.38 : x
  2. Step 2: Convert to fraction form
    85,146.27/127,675.05 = 31,794.38/x
  3. Step 3: Cross multiply
    85,146.27x = 127,675.05 × 31,794.38
  4. Step 4: Simplify right side
    85,146.27x = 4,059,348,417.84
  5. Step 5: Solve for x
    x = 4,059,348,417.84/85,146.27
  6. Step 6: Final answer
    x = 47,675.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.