Home / 55,957.56-77,219.10-30,805.44

Finding the Fourth Proportional to 55,957.56, 77,219.10 and 30,805.44

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Solution

The fourth proportional to 55,957.56, 77,219.10 and 30,805.44 is: 42,510.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,957.56 : 77,219.10 = 30,805.44 : x
  2. Step 2: Convert to fraction form
    55,957.56/77,219.10 = 30,805.44/x
  3. Step 3: Cross multiply
    55,957.56x = 77,219.10 × 30,805.44
  4. Step 4: Simplify right side
    55,957.56x = 2,378,768,351.90
  5. Step 5: Solve for x
    x = 2,378,768,351.90/55,957.56
  6. Step 6: Final answer
    x = 42,510.22

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1.5x scale

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.