Home / 74,835.23-112,416.86-55,239.71

Finding the Fourth Proportional to 74,835.23, 112,416.86 and 55,239.71

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Solution

The fourth proportional to 74,835.23, 112,416.86 and 55,239.71 is: 82,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,835.23 : 112,416.86 = 55,239.71 : x
  2. Step 2: Convert to fraction form
    74,835.23/112,416.86 = 55,239.71/x
  3. Step 3: Cross multiply
    74,835.23x = 112,416.86 × 55,239.71
  4. Step 4: Simplify right side
    74,835.23x = 6,209,874,321.53
  5. Step 5: Solve for x
    x = 6,209,874,321.53/74,835.23
  6. Step 6: Final answer
    x = 82,980.63

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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.