Home / 78,500.54-117,750.84-19,337.36

Finding the Fourth Proportional to 78,500.54, 117,750.84 and 19,337.36

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Solution

The fourth proportional to 78,500.54, 117,750.84 and 19,337.36 is: 29,006.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,500.54 : 117,750.84 = 19,337.36 : x
  2. Step 2: Convert to fraction form
    78,500.54/117,750.84 = 19,337.36/x
  3. Step 3: Cross multiply
    78,500.54x = 117,750.84 × 19,337.36
  4. Step 4: Simplify right side
    78,500.54x = 2,276,990,383.38
  5. Step 5: Solve for x
    x = 2,276,990,383.38/78,500.54
  6. Step 6: Final answer
    x = 29,006.05

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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.