Home / 55,966.80-77,234.16-30,816

Finding the Fourth Proportional to 55,966.80, 77,234.16 and 30,816

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Solution

The fourth proportional to 55,966.80, 77,234.16 and 30,816 is: 42,526.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,966.80 : 77,234.16 = 30,816 : x
  2. Step 2: Convert to fraction form
    55,966.80/77,234.16 = 30,816/x
  3. Step 3: Cross multiply
    55,966.80x = 77,234.16 × 30,816
  4. Step 4: Simplify right side
    55,966.80x = 2,380,047,874.56
  5. Step 5: Solve for x
    x = 2,380,047,874.56/55,966.80
  6. Step 6: Final answer
    x = 42,526.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.