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Finding the Fourth Proportional to 79,493.20, 119,239.80 and 59,664.40

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Solution

The fourth proportional to 79,493.20, 119,239.80 and 59,664.40 is: 89,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,493.20 : 119,239.80 = 59,664.40 : x
  2. Step 2: Convert to fraction form
    79,493.20/119,239.80 = 59,664.40/x
  3. Step 3: Cross multiply
    79,493.20x = 119,239.80 × 59,664.40
  4. Step 4: Simplify right side
    79,493.20x = 7,114,371,123.12
  5. Step 5: Solve for x
    x = 7,114,371,123.12/79,493.20
  6. Step 6: Final answer
    x = 89,496.60

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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.