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Finding the Fourth Proportional to 69,710.12, 104,506.40 and 30,237.50

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Solution

The fourth proportional to 69,710.12, 104,506.40 and 30,237.50 is: 45,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,710.12 : 104,506.40 = 30,237.50 : x
  2. Step 2: Convert to fraction form
    69,710.12/104,506.40 = 30,237.50/x
  3. Step 3: Cross multiply
    69,710.12x = 104,506.40 × 30,237.50
  4. Step 4: Simplify right side
    69,710.12x = 3,160,012,270
  5. Step 5: Solve for x
    x = 3,160,012,270/69,710.12
  6. Step 6: Final answer
    x = 45,330.75

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1.5x scale

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.