Home / 42,799.18-64,213.95-19,104.56

Finding the Fourth Proportional to 42,799.18, 64,213.95 and 19,104.56

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Solution

The fourth proportional to 42,799.18, 64,213.95 and 19,104.56 is: 28,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,799.18 : 64,213.95 = 19,104.56 : x
  2. Step 2: Convert to fraction form
    42,799.18/64,213.95 = 19,104.56/x
  3. Step 3: Cross multiply
    42,799.18x = 64,213.95 × 19,104.56
  4. Step 4: Simplify right side
    42,799.18x = 1,226,779,260.61
  5. Step 5: Solve for x
    x = 1,226,779,260.61/42,799.18
  6. Step 6: Final answer
    x = 28,663.62

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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.