Home / 81,573.14-122,395.93-31,657.10

Finding the Fourth Proportional to 81,573.14, 122,395.93 and 31,657.10

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Solution

The fourth proportional to 81,573.14, 122,395.93 and 31,657.10 is: 47,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,573.14 : 122,395.93 = 31,657.10 : x
  2. Step 2: Convert to fraction form
    81,573.14/122,395.93 = 31,657.10/x
  3. Step 3: Cross multiply
    81,573.14x = 122,395.93 × 31,657.10
  4. Step 4: Simplify right side
    81,573.14x = 3,874,699,504.48
  5. Step 5: Solve for x
    x = 3,874,699,504.48/81,573.14
  6. Step 6: Final answer
    x = 47,499.70

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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.