Home / 77,612.19-116,395.80-30,216.71

Finding the Fourth Proportional to 77,612.19, 116,395.80 and 30,216.71

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Solution

The fourth proportional to 77,612.19, 116,395.80 and 30,216.71 is: 45,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.19 : 116,395.80 = 30,216.71 : x
  2. Step 2: Convert to fraction form
    77,612.19/116,395.80 = 30,216.71/x
  3. Step 3: Cross multiply
    77,612.19x = 116,395.80 × 30,216.71
  4. Step 4: Simplify right side
    77,612.19x = 3,517,098,481.46
  5. Step 5: Solve for x
    x = 3,517,098,481.46/77,612.19
  6. Step 6: Final answer
    x = 45,316.31

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1.5x scale

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.