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Finding the Fourth Proportional to 79,862.40, 119,841.60 and 33,110.40

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Solution

The fourth proportional to 79,862.40, 119,841.60 and 33,110.40 is: 49,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,862.40 : 119,841.60 = 33,110.40 : x
  2. Step 2: Convert to fraction form
    79,862.40/119,841.60 = 33,110.40/x
  3. Step 3: Cross multiply
    79,862.40x = 119,841.60 × 33,110.40
  4. Step 4: Simplify right side
    79,862.40x = 3,968,003,312.64
  5. Step 5: Solve for x
    x = 3,968,003,312.64/79,862.40
  6. Step 6: Final answer
    x = 49,685.50

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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.