Home / 52,108.96-78,178.02-20,966.08

Finding the Fourth Proportional to 52,108.96, 78,178.02 and 20,966.08

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Solution

The fourth proportional to 52,108.96, 78,178.02 and 20,966.08 is: 31,454.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,108.96 : 78,178.02 = 20,966.08 : x
  2. Step 2: Convert to fraction form
    52,108.96/78,178.02 = 20,966.08/x
  3. Step 3: Cross multiply
    52,108.96x = 78,178.02 × 20,966.08
  4. Step 4: Simplify right side
    52,108.96x = 1,639,086,621.56
  5. Step 5: Solve for x
    x = 1,639,086,621.56/52,108.96
  6. Step 6: Final answer
    x = 31,454.99

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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.