Home / 91,721.36-126,528.90-59,908.88

Finding the Fourth Proportional to 91,721.36, 126,528.90 and 59,908.88

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Solution

The fourth proportional to 91,721.36, 126,528.90 and 59,908.88 is: 82,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,721.36 : 126,528.90 = 59,908.88 : x
  2. Step 2: Convert to fraction form
    91,721.36/126,528.90 = 59,908.88/x
  3. Step 3: Cross multiply
    91,721.36x = 126,528.90 × 59,908.88
  4. Step 4: Simplify right side
    91,721.36x = 7,580,204,686.63
  5. Step 5: Solve for x
    x = 7,580,204,686.63/91,721.36
  6. Step 6: Final answer
    x = 82,643.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.