Home / 54,639.84-75,410.16-30,771.18

Finding the Fourth Proportional to 54,639.84, 75,410.16 and 30,771.18

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Solution

The fourth proportional to 54,639.84, 75,410.16 and 30,771.18 is: 42,468.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,639.84 : 75,410.16 = 30,771.18 : x
  2. Step 2: Convert to fraction form
    54,639.84/75,410.16 = 30,771.18/x
  3. Step 3: Cross multiply
    54,639.84x = 75,410.16 × 30,771.18
  4. Step 4: Simplify right side
    54,639.84x = 2,320,459,607.19
  5. Step 5: Solve for x
    x = 2,320,459,607.19/54,639.84
  6. Step 6: Final answer
    x = 42,468.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.