Home / 85,153.09-117,511.29-47,427.34

Finding the Fourth Proportional to 85,153.09, 117,511.29 and 47,427.34

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Solution

The fourth proportional to 85,153.09, 117,511.29 and 47,427.34 is: 65,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.09 : 117,511.29 = 47,427.34 : x
  2. Step 2: Convert to fraction form
    85,153.09/117,511.29 = 47,427.34/x
  3. Step 3: Cross multiply
    85,153.09x = 117,511.29 × 47,427.34
  4. Step 4: Simplify right side
    85,153.09x = 5,573,247,904.67
  5. Step 5: Solve for x
    x = 5,573,247,904.67/85,153.09
  6. Step 6: Final answer
    x = 65,449.74

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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.