Home / 85,243.28-127,860.30-26,078.94

Finding the Fourth Proportional to 85,243.28, 127,860.30 and 26,078.94

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Solution

The fourth proportional to 85,243.28, 127,860.30 and 26,078.94 is: 39,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,243.28 : 127,860.30 = 26,078.94 : x
  2. Step 2: Convert to fraction form
    85,243.28/127,860.30 = 26,078.94/x
  3. Step 3: Cross multiply
    85,243.28x = 127,860.30 × 26,078.94
  4. Step 4: Simplify right side
    85,243.28x = 3,334,461,092.08
  5. Step 5: Solve for x
    x = 3,334,461,092.08/85,243.28
  6. Step 6: Final answer
    x = 39,117.00

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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.