Home / 49,877.74-74,831.10-18,715.42

Finding the Fourth Proportional to 49,877.74, 74,831.10 and 18,715.42

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Solution

The fourth proportional to 49,877.74, 74,831.10 and 18,715.42 is: 28,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,877.74 : 74,831.10 = 18,715.42 : x
  2. Step 2: Convert to fraction form
    49,877.74/74,831.10 = 18,715.42/x
  3. Step 3: Cross multiply
    49,877.74x = 74,831.10 × 18,715.42
  4. Step 4: Simplify right side
    49,877.74x = 1,400,495,465.56
  5. Step 5: Solve for x
    x = 1,400,495,465.56/49,877.74
  6. Step 6: Final answer
    x = 28,078.57

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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.