Home / 91,731.74-126,472.61-59,409.25

Finding the Fourth Proportional to 91,731.74, 126,472.61 and 59,409.25

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Solution

The fourth proportional to 91,731.74, 126,472.61 and 59,409.25 is: 81,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.74 : 126,472.61 = 59,409.25 : x
  2. Step 2: Convert to fraction form
    91,731.74/126,472.61 = 59,409.25/x
  3. Step 3: Cross multiply
    91,731.74x = 126,472.61 × 59,409.25
  4. Step 4: Simplify right side
    91,731.74x = 7,513,642,905.64
  5. Step 5: Solve for x
    x = 7,513,642,905.64/91,731.74
  6. Step 6: Final answer
    x = 81,908.87

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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.