Home / 75,004.52-112,451.20-45,415.40

Finding the Fourth Proportional to 75,004.52, 112,451.20 and 45,415.40

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Solution

The fourth proportional to 75,004.52, 112,451.20 and 45,415.40 is: 68,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,004.52 : 112,451.20 = 45,415.40 : x
  2. Step 2: Convert to fraction form
    75,004.52/112,451.20 = 45,415.40/x
  3. Step 3: Cross multiply
    75,004.52x = 112,451.20 × 45,415.40
  4. Step 4: Simplify right side
    75,004.52x = 5,107,016,228.48
  5. Step 5: Solve for x
    x = 5,107,016,228.48/75,004.52
  6. Step 6: Final answer
    x = 68,089.45

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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.