Home / 91,012.34-136,488.80-30,206.27

Finding the Fourth Proportional to 91,012.34, 136,488.80 and 30,206.27

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Solution

The fourth proportional to 91,012.34, 136,488.80 and 30,206.27 is: 45,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,012.34 : 136,488.80 = 30,206.27 : x
  2. Step 2: Convert to fraction form
    91,012.34/136,488.80 = 30,206.27/x
  3. Step 3: Cross multiply
    91,012.34x = 136,488.80 × 30,206.27
  4. Step 4: Simplify right side
    91,012.34x = 4,122,817,961.51
  5. Step 5: Solve for x
    x = 4,122,817,961.51/91,012.34
  6. Step 6: Final answer
    x = 45,299.55

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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.