Home / 55,855.20-83,807.10-28,153.20

Finding the Fourth Proportional to 55,855.20, 83,807.10 and 28,153.20

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Solution

The fourth proportional to 55,855.20, 83,807.10 and 28,153.20 is: 42,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.20 : 83,807.10 = 28,153.20 : x
  2. Step 2: Convert to fraction form
    55,855.20/83,807.10 = 28,153.20/x
  3. Step 3: Cross multiply
    55,855.20x = 83,807.10 × 28,153.20
  4. Step 4: Simplify right side
    55,855.20x = 2,359,438,047.72
  5. Step 5: Solve for x
    x = 2,359,438,047.72/55,855.20
  6. Step 6: Final answer
    x = 42,242.05

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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.