Home / 91,710.45-126,506.67-57,664.98

Finding the Fourth Proportional to 91,710.45, 126,506.67 and 57,664.98

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Solution

The fourth proportional to 91,710.45, 126,506.67 and 57,664.98 is: 79,543.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,710.45 : 126,506.67 = 57,664.98 : x
  2. Step 2: Convert to fraction form
    91,710.45/126,506.67 = 57,664.98/x
  3. Step 3: Cross multiply
    91,710.45x = 126,506.67 × 57,664.98
  4. Step 4: Simplify right side
    91,710.45x = 7,295,004,595.42
  5. Step 5: Solve for x
    x = 7,295,004,595.42/91,710.45
  6. Step 6: Final answer
    x = 79,543.88

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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.