Home / 79,127.04-109,192.59-45,146.54

Finding the Fourth Proportional to 79,127.04, 109,192.59 and 45,146.54

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Solution

The fourth proportional to 79,127.04, 109,192.59 and 45,146.54 is: 62,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.04 : 109,192.59 = 45,146.54 : x
  2. Step 2: Convert to fraction form
    79,127.04/109,192.59 = 45,146.54/x
  3. Step 3: Cross multiply
    79,127.04x = 109,192.59 × 45,146.54
  4. Step 4: Simplify right side
    79,127.04x = 4,929,667,086.18
  5. Step 5: Solve for x
    x = 4,929,667,086.18/79,127.04
  6. Step 6: Final answer
    x = 62,300.66

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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.