Home / 85,160.83-127,740.60-21,975.58

Finding the Fourth Proportional to 85,160.83, 127,740.60 and 21,975.58

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Solution

The fourth proportional to 85,160.83, 127,740.60 and 21,975.58 is: 32,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,160.83 : 127,740.60 = 21,975.58 : x
  2. Step 2: Convert to fraction form
    85,160.83/127,740.60 = 21,975.58/x
  3. Step 3: Cross multiply
    85,160.83x = 127,740.60 × 21,975.58
  4. Step 4: Simplify right side
    85,160.83x = 2,807,173,774.55
  5. Step 5: Solve for x
    x = 2,807,173,774.55/85,160.83
  6. Step 6: Final answer
    x = 32,963.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.