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Finding the Fourth Proportional to 79,802.80, 119,675.40 and 40,346.80

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Solution

The fourth proportional to 79,802.80, 119,675.40 and 40,346.80 is: 60,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,802.80 : 119,675.40 = 40,346.80 : x
  2. Step 2: Convert to fraction form
    79,802.80/119,675.40 = 40,346.80/x
  3. Step 3: Cross multiply
    79,802.80x = 119,675.40 × 40,346.80
  4. Step 4: Simplify right side
    79,802.80x = 4,828,519,428.72
  5. Step 5: Solve for x
    x = 4,828,519,428.72/79,802.80
  6. Step 6: Final answer
    x = 60,505.64

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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.