Home / 79,088.08-109,136.88-43,270.96

Finding the Fourth Proportional to 79,088.08, 109,136.88 and 43,270.96

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Solution

The fourth proportional to 79,088.08, 109,136.88 and 43,270.96 is: 59,711.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,088.08 : 109,136.88 = 43,270.96 : x
  2. Step 2: Convert to fraction form
    79,088.08/109,136.88 = 43,270.96/x
  3. Step 3: Cross multiply
    79,088.08x = 109,136.88 × 43,270.96
  4. Step 4: Simplify right side
    79,088.08x = 4,722,457,569.00
  5. Step 5: Solve for x
    x = 4,722,457,569.00/79,088.08
  6. Step 6: Final answer
    x = 59,711.37

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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.