Home / 78,813.01-108,778.14-48,191.34

Finding the Fourth Proportional to 78,813.01, 108,778.14 and 48,191.34

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Solution

The fourth proportional to 78,813.01, 108,778.14 and 48,191.34 is: 66,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813.01 : 108,778.14 = 48,191.34 : x
  2. Step 2: Convert to fraction form
    78,813.01/108,778.14 = 48,191.34/x
  3. Step 3: Cross multiply
    78,813.01x = 108,778.14 × 48,191.34
  4. Step 4: Simplify right side
    78,813.01x = 5,242,164,329.31
  5. Step 5: Solve for x
    x = 5,242,164,329.31/78,813.01
  6. Step 6: Final answer
    x = 66,513.95

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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.