Home / 78,692.07-108,595.05-42,882.07

Finding the Fourth Proportional to 78,692.07, 108,595.05 and 42,882.07

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Solution

The fourth proportional to 78,692.07, 108,595.05 and 42,882.07 is: 59,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,692.07 : 108,595.05 = 42,882.07 : x
  2. Step 2: Convert to fraction form
    78,692.07/108,595.05 = 42,882.07/x
  3. Step 3: Cross multiply
    78,692.07x = 108,595.05 × 42,882.07
  4. Step 4: Simplify right side
    78,692.07x = 4,656,780,535.75
  5. Step 5: Solve for x
    x = 4,656,780,535.75/78,692.07
  6. Step 6: Final answer
    x = 59,177.25

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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.