Home / 42,886.62-64,330.07-30,368.78

Finding the Fourth Proportional to 42,886.62, 64,330.07 and 30,368.78

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Solution

The fourth proportional to 42,886.62, 64,330.07 and 30,368.78 is: 45,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,886.62 : 64,330.07 = 30,368.78 : x
  2. Step 2: Convert to fraction form
    42,886.62/64,330.07 = 30,368.78/x
  3. Step 3: Cross multiply
    42,886.62x = 64,330.07 × 30,368.78
  4. Step 4: Simplify right side
    42,886.62x = 1,953,625,743.21
  5. Step 5: Solve for x
    x = 1,953,625,743.21/42,886.62
  6. Step 6: Final answer
    x = 45,553.27

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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.