Home / 85,623.40-118,155.54-47,890.36

Finding the Fourth Proportional to 85,623.40, 118,155.54 and 47,890.36

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Solution

The fourth proportional to 85,623.40, 118,155.54 and 47,890.36 is: 66,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,623.40 : 118,155.54 = 47,890.36 : x
  2. Step 2: Convert to fraction form
    85,623.40/118,155.54 = 47,890.36/x
  3. Step 3: Cross multiply
    85,623.40x = 118,155.54 × 47,890.36
  4. Step 4: Simplify right side
    85,623.40x = 5,658,511,346.59
  5. Step 5: Solve for x
    x = 5,658,511,346.59/85,623.40
  6. Step 6: Final answer
    x = 66,086.04

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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.