Home / 55,649.44-83,465.28-20,581.12

Finding the Fourth Proportional to 55,649.44, 83,465.28 and 20,581.12

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Solution

The fourth proportional to 55,649.44, 83,465.28 and 20,581.12 is: 30,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,649.44 : 83,465.28 = 20,581.12 : x
  2. Step 2: Convert to fraction form
    55,649.44/83,465.28 = 20,581.12/x
  3. Step 3: Cross multiply
    55,649.44x = 83,465.28 × 20,581.12
  4. Step 4: Simplify right side
    55,649.44x = 1,717,808,943.51
  5. Step 5: Solve for x
    x = 1,717,808,943.51/55,649.44
  6. Step 6: Final answer
    x = 30,868.40

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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.