Home / 57,136.28-78,838.68-35,900.50

Finding the Fourth Proportional to 57,136.28, 78,838.68 and 35,900.50

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Solution

The fourth proportional to 57,136.28, 78,838.68 and 35,900.50 is: 49,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,136.28 : 78,838.68 = 35,900.50 : x
  2. Step 2: Convert to fraction form
    57,136.28/78,838.68 = 35,900.50/x
  3. Step 3: Cross multiply
    57,136.28x = 78,838.68 × 35,900.50
  4. Step 4: Simplify right side
    57,136.28x = 2,830,348,031.34
  5. Step 5: Solve for x
    x = 2,830,348,031.34/57,136.28
  6. Step 6: Final answer
    x = 49,536.79

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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.