Home / 42,907.52-64,330.56-19,521.92

Finding the Fourth Proportional to 42,907.52, 64,330.56 and 19,521.92

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Solution

The fourth proportional to 42,907.52, 64,330.56 and 19,521.92 is: 29,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,907.52 : 64,330.56 = 19,521.92 : x
  2. Step 2: Convert to fraction form
    42,907.52/64,330.56 = 19,521.92/x
  3. Step 3: Cross multiply
    42,907.52x = 64,330.56 × 19,521.92
  4. Step 4: Simplify right side
    42,907.52x = 1,255,856,045.88
  5. Step 5: Solve for x
    x = 1,255,856,045.88/42,907.52
  6. Step 6: Final answer
    x = 29,268.90

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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.