Home / 85,729.32-118,303.79-47,487.33

Finding the Fourth Proportional to 85,729.32, 118,303.79 and 47,487.33

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Solution

The fourth proportional to 85,729.32, 118,303.79 and 47,487.33 is: 65,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,729.32 : 118,303.79 = 47,487.33 : x
  2. Step 2: Convert to fraction form
    85,729.32/118,303.79 = 47,487.33/x
  3. Step 3: Cross multiply
    85,729.32x = 118,303.79 × 47,487.33
  4. Step 4: Simplify right side
    85,729.32x = 5,617,930,878.54
  5. Step 5: Solve for x
    x = 5,617,930,878.54/85,729.32
  6. Step 6: Final answer
    x = 65,531.03

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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.