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Finding the Fourth Proportional to 62,653.50, 93,980.25 and 21,100.50

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Solution

The fourth proportional to 62,653.50, 93,980.25 and 21,100.50 is: 31,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,653.50 : 93,980.25 = 21,100.50 : x
  2. Step 2: Convert to fraction form
    62,653.50/93,980.25 = 21,100.50/x
  3. Step 3: Cross multiply
    62,653.50x = 93,980.25 × 21,100.50
  4. Step 4: Simplify right side
    62,653.50x = 1,983,030,265.13
  5. Step 5: Solve for x
    x = 1,983,030,265.13/62,653.50
  6. Step 6: Final answer
    x = 31,650.75

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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.