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Finding the Fourth Proportional to 78,302.84, 108,063.24 and 44,311.34

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Solution

The fourth proportional to 78,302.84, 108,063.24 and 44,311.34 is: 61,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,302.84 : 108,063.24 = 44,311.34 : x
  2. Step 2: Convert to fraction form
    78,302.84/108,063.24 = 44,311.34/x
  3. Step 3: Cross multiply
    78,302.84x = 108,063.24 × 44,311.34
  4. Step 4: Simplify right side
    78,302.84x = 4,788,426,969.14
  5. Step 5: Solve for x
    x = 4,788,426,969.14/78,302.84
  6. Step 6: Final answer
    x = 61,152.66

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1.5x scale

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.