Home / 49,955.30-74,931.22-12,515.70

Finding the Fourth Proportional to 49,955.30, 74,931.22 and 12,515.70

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Solution

The fourth proportional to 49,955.30, 74,931.22 and 12,515.70 is: 18,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,955.30 : 74,931.22 = 12,515.70 : x
  2. Step 2: Convert to fraction form
    49,955.30/74,931.22 = 12,515.70/x
  3. Step 3: Cross multiply
    49,955.30x = 74,931.22 × 12,515.70
  4. Step 4: Simplify right side
    49,955.30x = 937,816,670.15
  5. Step 5: Solve for x
    x = 937,816,670.15/49,955.30
  6. Step 6: Final answer
    x = 18,773.12

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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.