Home / 61,742.94-85,160.21-39,085.62

Finding the Fourth Proportional to 61,742.94, 85,160.21 and 39,085.62

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Solution

The fourth proportional to 61,742.94, 85,160.21 and 39,085.62 is: 53,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,742.94 : 85,160.21 = 39,085.62 : x
  2. Step 2: Convert to fraction form
    61,742.94/85,160.21 = 39,085.62/x
  3. Step 3: Cross multiply
    61,742.94x = 85,160.21 × 39,085.62
  4. Step 4: Simplify right side
    61,742.94x = 3,328,539,411.75
  5. Step 5: Solve for x
    x = 3,328,539,411.75/61,742.94
  6. Step 6: Final answer
    x = 53,909.64

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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.