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Finding the Fourth Proportional to 75,000.40, 112,484.40 and 32,880.40

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Solution

The fourth proportional to 75,000.40, 112,484.40 and 32,880.40 is: 49,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,000.40 : 112,484.40 = 32,880.40 : x
  2. Step 2: Convert to fraction form
    75,000.40/112,484.40 = 32,880.40/x
  3. Step 3: Cross multiply
    75,000.40x = 112,484.40 × 32,880.40
  4. Step 4: Simplify right side
    75,000.40x = 3,698,532,065.76
  5. Step 5: Solve for x
    x = 3,698,532,065.76/75,000.40
  6. Step 6: Final answer
    x = 49,313.50

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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.