Home / 83,724.84-125,587.08-21,395.16

Finding the Fourth Proportional to 83,724.84, 125,587.08 and 21,395.16

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Solution

The fourth proportional to 83,724.84, 125,587.08 and 21,395.16 is: 32,092.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,724.84 : 125,587.08 = 21,395.16 : x
  2. Step 2: Convert to fraction form
    83,724.84/125,587.08 = 21,395.16/x
  3. Step 3: Cross multiply
    83,724.84x = 125,587.08 × 21,395.16
  4. Step 4: Simplify right side
    83,724.84x = 2,686,955,670.53
  5. Step 5: Solve for x
    x = 2,686,955,670.53/83,724.84
  6. Step 6: Final answer
    x = 32,092.69

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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.