Home / 42,845.73-64,271.66-13,259.76

Finding the Fourth Proportional to 42,845.73, 64,271.66 and 13,259.76

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Solution

The fourth proportional to 42,845.73, 64,271.66 and 13,259.76 is: 19,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.73 : 64,271.66 = 13,259.76 : x
  2. Step 2: Convert to fraction form
    42,845.73/64,271.66 = 13,259.76/x
  3. Step 3: Cross multiply
    42,845.73x = 64,271.66 × 13,259.76
  4. Step 4: Simplify right side
    42,845.73x = 852,226,720.10
  5. Step 5: Solve for x
    x = 852,226,720.10/42,845.73
  6. Step 6: Final answer
    x = 19,890.59

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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.