Home / 61,790.34-85,188.21-49,085.70

Finding the Fourth Proportional to 61,790.34, 85,188.21 and 49,085.70

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Solution

The fourth proportional to 61,790.34, 85,188.21 and 49,085.70 is: 67,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,790.34 : 85,188.21 = 49,085.70 : x
  2. Step 2: Convert to fraction form
    61,790.34/85,188.21 = 49,085.70/x
  3. Step 3: Cross multiply
    61,790.34x = 85,188.21 × 49,085.70
  4. Step 4: Simplify right side
    61,790.34x = 4,181,522,416.07
  5. Step 5: Solve for x
    x = 4,181,522,416.07/61,790.34
  6. Step 6: Final answer
    x = 67,672.75

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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.