Home / 78,946.84-108,943.68-43,136.56

Finding the Fourth Proportional to 78,946.84, 108,943.68 and 43,136.56

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Solution

The fourth proportional to 78,946.84, 108,943.68 and 43,136.56 is: 59,526.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,946.84 : 108,943.68 = 43,136.56 : x
  2. Step 2: Convert to fraction form
    78,946.84/108,943.68 = 43,136.56/x
  3. Step 3: Cross multiply
    78,946.84x = 108,943.68 × 43,136.56
  4. Step 4: Simplify right side
    78,946.84x = 4,699,455,588.94
  5. Step 5: Solve for x
    x = 4,699,455,588.94/78,946.84
  6. Step 6: Final answer
    x = 59,526.84

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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.