Home / 78,446.08-108,241.50-46,622.80

Finding the Fourth Proportional to 78,446.08, 108,241.50 and 46,622.80

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Solution

The fourth proportional to 78,446.08, 108,241.50 and 46,622.80 is: 64,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,446.08 : 108,241.50 = 46,622.80 : x
  2. Step 2: Convert to fraction form
    78,446.08/108,241.50 = 46,622.80/x
  3. Step 3: Cross multiply
    78,446.08x = 108,241.50 × 46,622.80
  4. Step 4: Simplify right side
    78,446.08x = 5,046,521,806.20
  5. Step 5: Solve for x
    x = 5,046,521,806.20/78,446.08
  6. Step 6: Final answer
    x = 64,331.09

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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.