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Finding the Fourth Proportional to 85,580.59, 128,263.96 and 41,195.47

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Solution

The fourth proportional to 85,580.59, 128,263.96 and 41,195.47 is: 61,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.59 : 128,263.96 = 41,195.47 : x
  2. Step 2: Convert to fraction form
    85,580.59/128,263.96 = 41,195.47/x
  3. Step 3: Cross multiply
    85,580.59x = 128,263.96 × 41,195.47
  4. Step 4: Simplify right side
    85,580.59x = 5,283,894,116.26
  5. Step 5: Solve for x
    x = 5,283,894,116.26/85,580.59
  6. Step 6: Final answer
    x = 61,741.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.