Home / 42,766.68-64,162.98-19,386.84

Finding the Fourth Proportional to 42,766.68, 64,162.98 and 19,386.84

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Solution

The fourth proportional to 42,766.68, 64,162.98 and 19,386.84 is: 29,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,766.68 : 64,162.98 = 19,386.84 : x
  2. Step 2: Convert to fraction form
    42,766.68/64,162.98 = 19,386.84/x
  3. Step 3: Cross multiply
    42,766.68x = 64,162.98 × 19,386.84
  4. Step 4: Simplify right side
    42,766.68x = 1,243,917,427.18
  5. Step 5: Solve for x
    x = 1,243,917,427.18/42,766.68
  6. Step 6: Final answer
    x = 29,086.13

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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.