Home / 85,139.77-117,370.13-59,566.90

Finding the Fourth Proportional to 85,139.77, 117,370.13 and 59,566.90

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Solution

The fourth proportional to 85,139.77, 117,370.13 and 59,566.90 is: 82,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,139.77 : 117,370.13 = 59,566.90 : x
  2. Step 2: Convert to fraction form
    85,139.77/117,370.13 = 59,566.90/x
  3. Step 3: Cross multiply
    85,139.77x = 117,370.13 × 59,566.90
  4. Step 4: Simplify right side
    85,139.77x = 6,991,374,796.70
  5. Step 5: Solve for x
    x = 6,991,374,796.70/85,139.77
  6. Step 6: Final answer
    x = 82,116.44

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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.