Home / 92,970.08-139,509.78-36,815.60

Finding the Fourth Proportional to 92,970.08, 139,509.78 and 36,815.60

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Solution

The fourth proportional to 92,970.08, 139,509.78 and 36,815.60 is: 55,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,970.08 : 139,509.78 = 36,815.60 : x
  2. Step 2: Convert to fraction form
    92,970.08/139,509.78 = 36,815.60/x
  3. Step 3: Cross multiply
    92,970.08x = 139,509.78 × 36,815.60
  4. Step 4: Simplify right side
    92,970.08x = 5,136,136,256.57
  5. Step 5: Solve for x
    x = 5,136,136,256.57/92,970.08
  6. Step 6: Final answer
    x = 55,245.05

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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.