Home / 77,065.02-115,613.02-27,180.46

Finding the Fourth Proportional to 77,065.02, 115,613.02 and 27,180.46

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Solution

The fourth proportional to 77,065.02, 115,613.02 and 27,180.46 is: 40,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,065.02 : 115,613.02 = 27,180.46 : x
  2. Step 2: Convert to fraction form
    77,065.02/115,613.02 = 27,180.46/x
  3. Step 3: Cross multiply
    77,065.02x = 115,613.02 × 27,180.46
  4. Step 4: Simplify right side
    77,065.02x = 3,142,415,244.08
  5. Step 5: Solve for x
    x = 3,142,415,244.08/77,065.02
  6. Step 6: Final answer
    x = 40,776.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.