Home / 85,116.12-117,461.06-47,391.18

Finding the Fourth Proportional to 85,116.12, 117,461.06 and 47,391.18

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Solution

The fourth proportional to 85,116.12, 117,461.06 and 47,391.18 is: 65,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,116.12 : 117,461.06 = 47,391.18 : x
  2. Step 2: Convert to fraction form
    85,116.12/117,461.06 = 47,391.18/x
  3. Step 3: Cross multiply
    85,116.12x = 117,461.06 × 47,391.18
  4. Step 4: Simplify right side
    85,116.12x = 5,566,618,237.45
  5. Step 5: Solve for x
    x = 5,566,618,237.45/85,116.12
  6. Step 6: Final answer
    x = 65,400.28

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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.