Home / 85,434.18-117,895.41-47,707.62

Finding the Fourth Proportional to 85,434.18, 117,895.41 and 47,707.62

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Solution

The fourth proportional to 85,434.18, 117,895.41 and 47,707.62 is: 65,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,434.18 : 117,895.41 = 47,707.62 : x
  2. Step 2: Convert to fraction form
    85,434.18/117,895.41 = 47,707.62/x
  3. Step 3: Cross multiply
    85,434.18x = 117,895.41 × 47,707.62
  4. Step 4: Simplify right side
    85,434.18x = 5,624,509,420.02
  5. Step 5: Solve for x
    x = 5,624,509,420.02/85,434.18
  6. Step 6: Final answer
    x = 65,834.42

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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.