Home / 99,531.81-149,274.50-57,322.17

Finding the Fourth Proportional to 99,531.81, 149,274.50 and 57,322.17

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Solution

The fourth proportional to 99,531.81, 149,274.50 and 57,322.17 is: 85,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,531.81 : 149,274.50 = 57,322.17 : x
  2. Step 2: Convert to fraction form
    99,531.81/149,274.50 = 57,322.17/x
  3. Step 3: Cross multiply
    99,531.81x = 149,274.50 × 57,322.17
  4. Step 4: Simplify right side
    99,531.81x = 8,556,737,979.05
  5. Step 5: Solve for x
    x = 8,556,737,979.05/99,531.81
  6. Step 6: Final answer
    x = 85,969.88

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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.