Home / 85,038.84-117,358.20-47,313.90

Finding the Fourth Proportional to 85,038.84, 117,358.20 and 47,313.90

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Solution

The fourth proportional to 85,038.84, 117,358.20 and 47,313.90 is: 65,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,038.84 : 117,358.20 = 47,313.90 : x
  2. Step 2: Convert to fraction form
    85,038.84/117,358.20 = 47,313.90/x
  3. Step 3: Cross multiply
    85,038.84x = 117,358.20 × 47,313.90
  4. Step 4: Simplify right side
    85,038.84x = 5,552,674,138.98
  5. Step 5: Solve for x
    x = 5,552,674,138.98/85,038.84
  6. Step 6: Final answer
    x = 65,295.74

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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.