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Finding the Fourth Proportional to 79,353.60, 119,117.88 and 39,900.12

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Solution

The fourth proportional to 79,353.60, 119,117.88 and 39,900.12 is: 59,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,353.60 : 119,117.88 = 39,900.12 : x
  2. Step 2: Convert to fraction form
    79,353.60/119,117.88 = 39,900.12/x
  3. Step 3: Cross multiply
    79,353.60x = 119,117.88 × 39,900.12
  4. Step 4: Simplify right side
    79,353.60x = 4,752,817,706.15
  5. Step 5: Solve for x
    x = 4,752,817,706.15/79,353.60
  6. Step 6: Final answer
    x = 59,894.17

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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.