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Finding the Fourth Proportional to 71,379.45, 98,551.76 and 63,801.50

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Solution

The fourth proportional to 71,379.45, 98,551.76 and 63,801.50 is: 88,089.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,379.45 : 98,551.76 = 63,801.50 : x
  2. Step 2: Convert to fraction form
    71,379.45/98,551.76 = 63,801.50/x
  3. Step 3: Cross multiply
    71,379.45x = 98,551.76 × 63,801.50
  4. Step 4: Simplify right side
    71,379.45x = 6,287,749,303.87
  5. Step 5: Solve for x
    x = 6,287,749,303.87/71,379.45
  6. Step 6: Final answer
    x = 88,089.07

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1.5x scale

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.