Home / 52,092.84-78,139.15-18,812.91

Finding the Fourth Proportional to 52,092.84, 78,139.15 and 18,812.91

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Solution

The fourth proportional to 52,092.84, 78,139.15 and 18,812.91 is: 28,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,092.84 : 78,139.15 = 18,812.91 : x
  2. Step 2: Convert to fraction form
    52,092.84/78,139.15 = 18,812.91/x
  3. Step 3: Cross multiply
    52,092.84x = 78,139.15 × 18,812.91
  4. Step 4: Simplify right side
    52,092.84x = 1,470,024,796.43
  5. Step 5: Solve for x
    x = 1,470,024,796.43/52,092.84
  6. Step 6: Final answer
    x = 28,219.33

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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.