Home / 48,299.81-72,435.67-18,711.05

Finding the Fourth Proportional to 48,299.81, 72,435.67 and 18,711.05

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Solution

The fourth proportional to 48,299.81, 72,435.67 and 18,711.05 is: 28,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,299.81 : 72,435.67 = 18,711.05 : x
  2. Step 2: Convert to fraction form
    48,299.81/72,435.67 = 18,711.05/x
  3. Step 3: Cross multiply
    48,299.81x = 72,435.67 × 18,711.05
  4. Step 4: Simplify right side
    48,299.81x = 1,355,347,443.15
  5. Step 5: Solve for x
    x = 1,355,347,443.15/48,299.81
  6. Step 6: Final answer
    x = 28,061.13

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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.