Home / 78,543.68-117,823.70-25,222.19

Finding the Fourth Proportional to 78,543.68, 117,823.70 and 25,222.19

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Solution

The fourth proportional to 78,543.68, 117,823.70 and 25,222.19 is: 37,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,543.68 : 117,823.70 = 25,222.19 : x
  2. Step 2: Convert to fraction form
    78,543.68/117,823.70 = 25,222.19/x
  3. Step 3: Cross multiply
    78,543.68x = 117,823.70 × 25,222.19
  4. Step 4: Simplify right side
    78,543.68x = 2,971,771,221.84
  5. Step 5: Solve for x
    x = 2,971,771,221.84/78,543.68
  6. Step 6: Final answer
    x = 37,835.91

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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.