Home / 97,579.14-134,655.78-55,136.76

Finding the Fourth Proportional to 97,579.14, 134,655.78 and 55,136.76

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Solution

The fourth proportional to 97,579.14, 134,655.78 and 55,136.76 is: 76,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,579.14 : 134,655.78 = 55,136.76 : x
  2. Step 2: Convert to fraction form
    97,579.14/134,655.78 = 55,136.76/x
  3. Step 3: Cross multiply
    97,579.14x = 134,655.78 × 55,136.76
  4. Step 4: Simplify right side
    97,579.14x = 7,424,483,424.47
  5. Step 5: Solve for x
    x = 7,424,483,424.47/97,579.14
  6. Step 6: Final answer
    x = 76,086.79

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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.