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Finding the Fourth Proportional to 78,821.84, 118,232.76 and 52,577.84

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Solution

The fourth proportional to 78,821.84, 118,232.76 and 52,577.84 is: 78,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,821.84 : 118,232.76 = 52,577.84 : x
  2. Step 2: Convert to fraction form
    78,821.84/118,232.76 = 52,577.84/x
  3. Step 3: Cross multiply
    78,821.84x = 118,232.76 × 52,577.84
  4. Step 4: Simplify right side
    78,821.84x = 6,216,423,138.04
  5. Step 5: Solve for x
    x = 6,216,423,138.04/78,821.84
  6. Step 6: Final answer
    x = 78,866.76

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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.