Home / 57,136.68-85,709.02-17,688.60

Finding the Fourth Proportional to 57,136.68, 85,709.02 and 17,688.60

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Solution

The fourth proportional to 57,136.68, 85,709.02 and 17,688.60 is: 26,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,136.68 : 85,709.02 = 17,688.60 : x
  2. Step 2: Convert to fraction form
    57,136.68/85,709.02 = 17,688.60/x
  3. Step 3: Cross multiply
    57,136.68x = 85,709.02 × 17,688.60
  4. Step 4: Simplify right side
    57,136.68x = 1,516,072,571.17
  5. Step 5: Solve for x
    x = 1,516,072,571.17/57,136.68
  6. Step 6: Final answer
    x = 26,534.14

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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.