Home / 85,780.54-118,375.45-47,539.29

Finding the Fourth Proportional to 85,780.54, 118,375.45 and 47,539.29

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Solution

The fourth proportional to 85,780.54, 118,375.45 and 47,539.29 is: 65,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,780.54 : 118,375.45 = 47,539.29 : x
  2. Step 2: Convert to fraction form
    85,780.54/118,375.45 = 47,539.29/x
  3. Step 3: Cross multiply
    85,780.54x = 118,375.45 × 47,539.29
  4. Step 4: Simplify right side
    85,780.54x = 5,627,484,846.43
  5. Step 5: Solve for x
    x = 5,627,484,846.43/85,780.54
  6. Step 6: Final answer
    x = 65,603.28

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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.