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Finding the Fourth Proportional to 75,156.54, 103,479.98 and 63,802.50

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Solution

The fourth proportional to 75,156.54, 103,479.98 and 63,802.50 is: 87,847.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,156.54 : 103,479.98 = 63,802.50 : x
  2. Step 2: Convert to fraction form
    75,156.54/103,479.98 = 63,802.50/x
  3. Step 3: Cross multiply
    75,156.54x = 103,479.98 × 63,802.50
  4. Step 4: Simplify right side
    75,156.54x = 6,602,281,104.94
  5. Step 5: Solve for x
    x = 6,602,281,104.94/75,156.54
  6. Step 6: Final answer
    x = 87,847.06

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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.