Home / 55,849.50-77,072.34-30,700.62

Finding the Fourth Proportional to 55,849.50, 77,072.34 and 30,700.62

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Solution

The fourth proportional to 55,849.50, 77,072.34 and 30,700.62 is: 42,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,849.50 : 77,072.34 = 30,700.62 : x
  2. Step 2: Convert to fraction form
    55,849.50/77,072.34 = 30,700.62/x
  3. Step 3: Cross multiply
    55,849.50x = 77,072.34 × 30,700.62
  4. Step 4: Simplify right side
    55,849.50x = 2,366,168,622.85
  5. Step 5: Solve for x
    x = 2,366,168,622.85/55,849.50
  6. Step 6: Final answer
    x = 42,366.87

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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.