Home / 85,341.87-117,771.75-47,616.12

Finding the Fourth Proportional to 85,341.87, 117,771.75 and 47,616.12

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Solution

The fourth proportional to 85,341.87, 117,771.75 and 47,616.12 is: 65,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,341.87 : 117,771.75 = 47,616.12 : x
  2. Step 2: Convert to fraction form
    85,341.87/117,771.75 = 47,616.12/x
  3. Step 3: Cross multiply
    85,341.87x = 117,771.75 × 47,616.12
  4. Step 4: Simplify right side
    85,341.87x = 5,607,833,780.61
  5. Step 5: Solve for x
    x = 5,607,833,780.61/85,341.87
  6. Step 6: Final answer
    x = 65,710.23

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1.5x scale

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.