Home / 63,142.28-87,136.80-34,461.68

Finding the Fourth Proportional to 63,142.28, 87,136.80 and 34,461.68

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Solution

The fourth proportional to 63,142.28, 87,136.80 and 34,461.68 is: 47,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,142.28 : 87,136.80 = 34,461.68 : x
  2. Step 2: Convert to fraction form
    63,142.28/87,136.80 = 34,461.68/x
  3. Step 3: Cross multiply
    63,142.28x = 87,136.80 × 34,461.68
  4. Step 4: Simplify right side
    63,142.28x = 3,002,880,517.82
  5. Step 5: Solve for x
    x = 3,002,880,517.82/63,142.28
  6. Step 6: Final answer
    x = 47,557.37

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1.5x scale

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.