Home / 85,495.06-117,989.28-47,253.78

Finding the Fourth Proportional to 85,495.06, 117,989.28 and 47,253.78

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Solution

The fourth proportional to 85,495.06, 117,989.28 and 47,253.78 is: 65,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,495.06 : 117,989.28 = 47,253.78 : x
  2. Step 2: Convert to fraction form
    85,495.06/117,989.28 = 47,253.78/x
  3. Step 3: Cross multiply
    85,495.06x = 117,989.28 × 47,253.78
  4. Step 4: Simplify right side
    85,495.06x = 5,575,439,479.48
  5. Step 5: Solve for x
    x = 5,575,439,479.48/85,495.06
  6. Step 6: Final answer
    x = 65,213.59

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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.