Home / 82,385.99-123,579.66-53,946.92

Finding the Fourth Proportional to 82,385.99, 123,579.66 and 53,946.92

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Solution

The fourth proportional to 82,385.99, 123,579.66 and 53,946.92 is: 80,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,385.99 : 123,579.66 = 53,946.92 : x
  2. Step 2: Convert to fraction form
    82,385.99/123,579.66 = 53,946.92/x
  3. Step 3: Cross multiply
    82,385.99x = 123,579.66 × 53,946.92
  4. Step 4: Simplify right side
    82,385.99x = 6,666,742,031.65
  5. Step 5: Solve for x
    x = 6,666,742,031.65/82,385.99
  6. Step 6: Final answer
    x = 80,920.82

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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.