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Finding the Fourth Proportional to 79,503.30, 119,259.03 and 20,339.48

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Solution

The fourth proportional to 79,503.30, 119,259.03 and 20,339.48 is: 30,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,503.30 : 119,259.03 = 20,339.48 : x
  2. Step 2: Convert to fraction form
    79,503.30/119,259.03 = 20,339.48/x
  3. Step 3: Cross multiply
    79,503.30x = 119,259.03 × 20,339.48
  4. Step 4: Simplify right side
    79,503.30x = 2,425,666,655.50
  5. Step 5: Solve for x
    x = 2,425,666,655.50/79,503.30
  6. Step 6: Final answer
    x = 30,510.26

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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.