Home / 83,971.69-125,957.99-21,642.19

Finding the Fourth Proportional to 83,971.69, 125,957.99 and 21,642.19

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Solution

The fourth proportional to 83,971.69, 125,957.99 and 21,642.19 is: 32,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,971.69 : 125,957.99 = 21,642.19 : x
  2. Step 2: Convert to fraction form
    83,971.69/125,957.99 = 21,642.19/x
  3. Step 3: Cross multiply
    83,971.69x = 125,957.99 × 21,642.19
  4. Step 4: Simplify right side
    83,971.69x = 2,726,006,369.07
  5. Step 5: Solve for x
    x = 2,726,006,369.07/83,971.69
  6. Step 6: Final answer
    x = 32,463.40

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1.5x scale

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.