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Finding the Fourth Proportional to 75,004.65, 112,492.13 and 21,702.87

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Solution

The fourth proportional to 75,004.65, 112,492.13 and 21,702.87 is: 32,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,004.65 : 112,492.13 = 21,702.87 : x
  2. Step 2: Convert to fraction form
    75,004.65/112,492.13 = 21,702.87/x
  3. Step 3: Cross multiply
    75,004.65x = 112,492.13 × 21,702.87
  4. Step 4: Simplify right side
    75,004.65x = 2,441,401,964.90
  5. Step 5: Solve for x
    x = 2,441,401,964.90/75,004.65
  6. Step 6: Final answer
    x = 32,550.01

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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.