Home / 79,621.17-109,878.69-43,810.86

Finding the Fourth Proportional to 79,621.17, 109,878.69 and 43,810.86

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Solution

The fourth proportional to 79,621.17, 109,878.69 and 43,810.86 is: 60,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.17 : 109,878.69 = 43,810.86 : x
  2. Step 2: Convert to fraction form
    79,621.17/109,878.69 = 43,810.86/x
  3. Step 3: Cross multiply
    79,621.17x = 109,878.69 × 43,810.86
  4. Step 4: Simplify right side
    79,621.17x = 4,813,879,904.57
  5. Step 5: Solve for x
    x = 4,813,879,904.57/79,621.17
  6. Step 6: Final answer
    x = 60,459.80

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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.