Home / 78,215.04-117,308.88-36,093.12

Finding the Fourth Proportional to 78,215.04, 117,308.88 and 36,093.12

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Solution

The fourth proportional to 78,215.04, 117,308.88 and 36,093.12 is: 54,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,215.04 : 117,308.88 = 36,093.12 : x
  2. Step 2: Convert to fraction form
    78,215.04/117,308.88 = 36,093.12/x
  3. Step 3: Cross multiply
    78,215.04x = 117,308.88 × 36,093.12
  4. Step 4: Simplify right side
    78,215.04x = 4,234,043,482.91
  5. Step 5: Solve for x
    x = 4,234,043,482.91/78,215.04
  6. Step 6: Final answer
    x = 54,133.37

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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.