Home / 85,915.28-118,562.72-48,189.54

Finding the Fourth Proportional to 85,915.28, 118,562.72 and 48,189.54

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Solution

The fourth proportional to 85,915.28, 118,562.72 and 48,189.54 is: 66,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,915.28 : 118,562.72 = 48,189.54 : x
  2. Step 2: Convert to fraction form
    85,915.28/118,562.72 = 48,189.54/x
  3. Step 3: Cross multiply
    85,915.28x = 118,562.72 × 48,189.54
  4. Step 4: Simplify right side
    85,915.28x = 5,713,482,937.95
  5. Step 5: Solve for x
    x = 5,713,482,937.95/85,915.28
  6. Step 6: Final answer
    x = 66,501.36

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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.