Home / 55,419.84-83,127.24-20,356.92

Finding the Fourth Proportional to 55,419.84, 83,127.24 and 20,356.92

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Solution

The fourth proportional to 55,419.84, 83,127.24 and 20,356.92 is: 30,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.84 : 83,127.24 = 20,356.92 : x
  2. Step 2: Convert to fraction form
    55,419.84/83,127.24 = 20,356.92/x
  3. Step 3: Cross multiply
    55,419.84x = 83,127.24 × 20,356.92
  4. Step 4: Simplify right side
    55,419.84x = 1,692,214,574.50
  5. Step 5: Solve for x
    x = 1,692,214,574.50/55,419.84
  6. Step 6: Final answer
    x = 30,534.45

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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.