Home / 55,997.20-83,995.80-42,000.40

Finding the Fourth Proportional to 55,997.20, 83,995.80 and 42,000.40

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Solution

The fourth proportional to 55,997.20, 83,995.80 and 42,000.40 is: 63,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,997.20 : 83,995.80 = 42,000.40 : x
  2. Step 2: Convert to fraction form
    55,997.20/83,995.80 = 42,000.40/x
  3. Step 3: Cross multiply
    55,997.20x = 83,995.80 × 42,000.40
  4. Step 4: Simplify right side
    55,997.20x = 3,527,857,198.32
  5. Step 5: Solve for x
    x = 3,527,857,198.32/55,997.20
  6. Step 6: Final answer
    x = 63,000.60

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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.