Home / 67,980.08-93,811.20-37,765.28

Finding the Fourth Proportional to 67,980.08, 93,811.20 and 37,765.28

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Solution

The fourth proportional to 67,980.08, 93,811.20 and 37,765.28 is: 52,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,980.08 : 93,811.20 = 37,765.28 : x
  2. Step 2: Convert to fraction form
    67,980.08/93,811.20 = 37,765.28/x
  3. Step 3: Cross multiply
    67,980.08x = 93,811.20 × 37,765.28
  4. Step 4: Simplify right side
    67,980.08x = 3,542,806,235.14
  5. Step 5: Solve for x
    x = 3,542,806,235.14/67,980.08
  6. Step 6: Final answer
    x = 52,115.36

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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.