Home / 82,953.10-124,429.50-20,623.60

Finding the Fourth Proportional to 82,953.10, 124,429.50 and 20,623.60

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Solution

The fourth proportional to 82,953.10, 124,429.50 and 20,623.60 is: 30,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,953.10 : 124,429.50 = 20,623.60 : x
  2. Step 2: Convert to fraction form
    82,953.10/124,429.50 = 20,623.60/x
  3. Step 3: Cross multiply
    82,953.10x = 124,429.50 × 20,623.60
  4. Step 4: Simplify right side
    82,953.10x = 2,566,184,236.20
  5. Step 5: Solve for x
    x = 2,566,184,236.20/82,953.10
  6. Step 6: Final answer
    x = 30,935.36

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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.