Home / 63,136.20-87,156.63-40,483.74

Finding the Fourth Proportional to 63,136.20, 87,156.63 and 40,483.74

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Solution

The fourth proportional to 63,136.20, 87,156.63 and 40,483.74 is: 55,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,136.20 : 87,156.63 = 40,483.74 : x
  2. Step 2: Convert to fraction form
    63,136.20/87,156.63 = 40,483.74/x
  3. Step 3: Cross multiply
    63,136.20x = 87,156.63 × 40,483.74
  4. Step 4: Simplify right side
    63,136.20x = 3,528,426,348.20
  5. Step 5: Solve for x
    x = 3,528,426,348.20/63,136.20
  6. Step 6: Final answer
    x = 55,885.95

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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.