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Finding the Fourth Proportional to 79,107.84, 118,676.16 and 39,692.16

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Solution

The fourth proportional to 79,107.84, 118,676.16 and 39,692.16 is: 59,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,107.84 : 118,676.16 = 39,692.16 : x
  2. Step 2: Convert to fraction form
    79,107.84/118,676.16 = 39,692.16/x
  3. Step 3: Cross multiply
    79,107.84x = 118,676.16 × 39,692.16
  4. Step 4: Simplify right side
    79,107.84x = 4,710,513,130.91
  5. Step 5: Solve for x
    x = 4,710,513,130.91/79,107.84
  6. Step 6: Final answer
    x = 59,545.47

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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.