Home / 79,145.04-109,228.98-45,161.94

Finding the Fourth Proportional to 79,145.04, 109,228.98 and 45,161.94

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Solution

The fourth proportional to 79,145.04, 109,228.98 and 45,161.94 is: 62,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,145.04 : 109,228.98 = 45,161.94 : x
  2. Step 2: Convert to fraction form
    79,145.04/109,228.98 = 45,161.94/x
  3. Step 3: Cross multiply
    79,145.04x = 109,228.98 × 45,161.94
  4. Step 4: Simplify right side
    79,145.04x = 4,932,992,641.02
  5. Step 5: Solve for x
    x = 4,932,992,641.02/79,145.04
  6. Step 6: Final answer
    x = 62,328.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.