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Finding the Fourth Proportional to 99,696.61, 149,484.66 and 39,734.32

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Solution

The fourth proportional to 99,696.61, 149,484.66 and 39,734.32 is: 59,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,696.61 : 149,484.66 = 39,734.32 : x
  2. Step 2: Convert to fraction form
    99,696.61/149,484.66 = 39,734.32/x
  3. Step 3: Cross multiply
    99,696.61x = 149,484.66 × 39,734.32
  4. Step 4: Simplify right side
    99,696.61x = 5,939,671,315.53
  5. Step 5: Solve for x
    x = 5,939,671,315.53/99,696.61
  6. Step 6: Final answer
    x = 59,577.47

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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.