Home / 85,101.52-117,442.20-47,376.40

Finding the Fourth Proportional to 85,101.52, 117,442.20 and 47,376.40

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Solution

The fourth proportional to 85,101.52, 117,442.20 and 47,376.40 is: 65,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,101.52 : 117,442.20 = 47,376.40 : x
  2. Step 2: Convert to fraction form
    85,101.52/117,442.20 = 47,376.40/x
  3. Step 3: Cross multiply
    85,101.52x = 117,442.20 × 47,376.40
  4. Step 4: Simplify right side
    85,101.52x = 5,563,988,644.08
  5. Step 5: Solve for x
    x = 5,563,988,644.08/85,101.52
  6. Step 6: Final answer
    x = 65,380.60

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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.