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Finding the Fourth Proportional to 79,148.97, 109,225.53 and 43,338.96

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Solution

The fourth proportional to 79,148.97, 109,225.53 and 43,338.96 is: 59,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,148.97 : 109,225.53 = 43,338.96 : x
  2. Step 2: Convert to fraction form
    79,148.97/109,225.53 = 43,338.96/x
  3. Step 3: Cross multiply
    79,148.97x = 109,225.53 × 43,338.96
  4. Step 4: Simplify right side
    79,148.97x = 4,733,720,875.65
  5. Step 5: Solve for x
    x = 4,733,720,875.65/79,148.97
  6. Step 6: Final answer
    x = 59,807.74

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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.