Home / 52,070.46-78,089.55-18,786.20

Finding the Fourth Proportional to 52,070.46, 78,089.55 and 18,786.20

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Solution

The fourth proportional to 52,070.46, 78,089.55 and 18,786.20 is: 28,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,070.46 : 78,089.55 = 18,786.20 : x
  2. Step 2: Convert to fraction form
    52,070.46/78,089.55 = 18,786.20/x
  3. Step 3: Cross multiply
    52,070.46x = 78,089.55 × 18,786.20
  4. Step 4: Simplify right side
    52,070.46x = 1,467,005,513.76
  5. Step 5: Solve for x
    x = 1,467,005,513.76/52,070.46
  6. Step 6: Final answer
    x = 28,173.47

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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.