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Finding the Fourth Proportional to 79,510.68, 119,265.96 and 20,346.36

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Solution

The fourth proportional to 79,510.68, 119,265.96 and 20,346.36 is: 30,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,510.68 : 119,265.96 = 20,346.36 : x
  2. Step 2: Convert to fraction form
    79,510.68/119,265.96 = 20,346.36/x
  3. Step 3: Cross multiply
    79,510.68x = 119,265.96 × 20,346.36
  4. Step 4: Simplify right side
    79,510.68x = 2,426,628,157.91
  5. Step 5: Solve for x
    x = 2,426,628,157.91/79,510.68
  6. Step 6: Final answer
    x = 30,519.52

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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.