Home / 82,953.12-124,429.56-20,623.62

Finding the Fourth Proportional to 82,953.12, 124,429.56 and 20,623.62

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Solution

The fourth proportional to 82,953.12, 124,429.56 and 20,623.62 is: 30,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,953.12 : 124,429.56 = 20,623.62 : x
  2. Step 2: Convert to fraction form
    82,953.12/124,429.56 = 20,623.62/x
  3. Step 3: Cross multiply
    82,953.12x = 124,429.56 × 20,623.62
  4. Step 4: Simplify right side
    82,953.12x = 2,566,187,962.21
  5. Step 5: Solve for x
    x = 2,566,187,962.21/82,953.12
  6. Step 6: Final answer
    x = 30,935.40

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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.