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Finding the Fourth Proportional to 75,003.40, 112,505.10 and 54,267.40

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Solution

The fourth proportional to 75,003.40, 112,505.10 and 54,267.40 is: 81,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,003.40 : 112,505.10 = 54,267.40 : x
  2. Step 2: Convert to fraction form
    75,003.40/112,505.10 = 54,267.40/x
  3. Step 3: Cross multiply
    75,003.40x = 112,505.10 × 54,267.40
  4. Step 4: Simplify right side
    75,003.40x = 6,105,359,263.74
  5. Step 5: Solve for x
    x = 6,105,359,263.74/75,003.40
  6. Step 6: Final answer
    x = 81,401.10

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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.