Home / 42,867.49-64,342.65-20,696.44

Finding the Fourth Proportional to 42,867.49, 64,342.65 and 20,696.44

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Solution

The fourth proportional to 42,867.49, 64,342.65 and 20,696.44 is: 31,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,867.49 : 64,342.65 = 20,696.44 : x
  2. Step 2: Convert to fraction form
    42,867.49/64,342.65 = 20,696.44/x
  3. Step 3: Cross multiply
    42,867.49x = 64,342.65 × 20,696.44
  4. Step 4: Simplify right side
    42,867.49x = 1,331,663,795.17
  5. Step 5: Solve for x
    x = 1,331,663,795.17/42,867.49
  6. Step 6: Final answer
    x = 31,064.66

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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.