Home / 54,477.28-75,178.20-30,603.45

Finding the Fourth Proportional to 54,477.28, 75,178.20 and 30,603.45

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Solution

The fourth proportional to 54,477.28, 75,178.20 and 30,603.45 is: 42,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,477.28 : 75,178.20 = 30,603.45 : x
  2. Step 2: Convert to fraction form
    54,477.28/75,178.20 = 30,603.45/x
  3. Step 3: Cross multiply
    54,477.28x = 75,178.20 × 30,603.45
  4. Step 4: Simplify right side
    54,477.28x = 2,300,711,961.08
  5. Step 5: Solve for x
    x = 2,300,711,961.08/54,477.28
  6. Step 6: Final answer
    x = 42,232.50

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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.