Home / 85,071.50-117,405.45-49,262.14

Finding the Fourth Proportional to 85,071.50, 117,405.45 and 49,262.14

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Solution

The fourth proportional to 85,071.50, 117,405.45 and 49,262.14 is: 67,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.50 : 117,405.45 = 49,262.14 : x
  2. Step 2: Convert to fraction form
    85,071.50/117,405.45 = 49,262.14/x
  3. Step 3: Cross multiply
    85,071.50x = 117,405.45 × 49,262.14
  4. Step 4: Simplify right side
    85,071.50x = 5,783,643,714.66
  5. Step 5: Solve for x
    x = 5,783,643,714.66/85,071.50
  6. Step 6: Final answer
    x = 67,985.68

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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.