Home / 79,430.49-109,614.86-43,621.26

Finding the Fourth Proportional to 79,430.49, 109,614.86 and 43,621.26

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Solution

The fourth proportional to 79,430.49, 109,614.86 and 43,621.26 is: 60,197.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430.49 : 109,614.86 = 43,621.26 : x
  2. Step 2: Convert to fraction form
    79,430.49/109,614.86 = 43,621.26/x
  3. Step 3: Cross multiply
    79,430.49x = 109,614.86 × 43,621.26
  4. Step 4: Simplify right side
    79,430.49x = 4,781,538,089.82
  5. Step 5: Solve for x
    x = 4,781,538,089.82/79,430.49
  6. Step 6: Final answer
    x = 60,197.77

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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.