Home / 85,142.72-117,374.19-59,569.85

Finding the Fourth Proportional to 85,142.72, 117,374.19 and 59,569.85

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Solution

The fourth proportional to 85,142.72, 117,374.19 and 59,569.85 is: 82,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,142.72 : 117,374.19 = 59,569.85 : x
  2. Step 2: Convert to fraction form
    85,142.72/117,374.19 = 59,569.85/x
  3. Step 3: Cross multiply
    85,142.72x = 117,374.19 × 59,569.85
  4. Step 4: Simplify right side
    85,142.72x = 6,991,962,892.17
  5. Step 5: Solve for x
    x = 6,991,962,892.17/85,142.72
  6. Step 6: Final answer
    x = 82,120.50

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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.