Home / 55,386.20-83,076.57-20,323.13

Finding the Fourth Proportional to 55,386.20, 83,076.57 and 20,323.13

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Solution

The fourth proportional to 55,386.20, 83,076.57 and 20,323.13 is: 30,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386.20 : 83,076.57 = 20,323.13 : x
  2. Step 2: Convert to fraction form
    55,386.20/83,076.57 = 20,323.13/x
  3. Step 3: Cross multiply
    55,386.20x = 83,076.57 × 20,323.13
  4. Step 4: Simplify right side
    55,386.20x = 1,688,375,516.68
  5. Step 5: Solve for x
    x = 1,688,375,516.68/55,386.20
  6. Step 6: Final answer
    x = 30,483.68

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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.