Home / 85,036.68-127,549.89-31,718.16

Finding the Fourth Proportional to 85,036.68, 127,549.89 and 31,718.16

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Solution

The fourth proportional to 85,036.68, 127,549.89 and 31,718.16 is: 47,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,036.68 : 127,549.89 = 31,718.16 : x
  2. Step 2: Convert to fraction form
    85,036.68/127,549.89 = 31,718.16/x
  3. Step 3: Cross multiply
    85,036.68x = 127,549.89 × 31,718.16
  4. Step 4: Simplify right side
    85,036.68x = 4,045,647,819.00
  5. Step 5: Solve for x
    x = 4,045,647,819.00/85,036.68
  6. Step 6: Final answer
    x = 47,575.33

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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.