Home / 72,124.26-99,481.23-66,175.62

Finding the Fourth Proportional to 72,124.26, 99,481.23 and 66,175.62

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Solution

The fourth proportional to 72,124.26, 99,481.23 and 66,175.62 is: 91,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,124.26 : 99,481.23 = 66,175.62 : x
  2. Step 2: Convert to fraction form
    72,124.26/99,481.23 = 66,175.62/x
  3. Step 3: Cross multiply
    72,124.26x = 99,481.23 × 66,175.62
  4. Step 4: Simplify right side
    72,124.26x = 6,583,232,073.61
  5. Step 5: Solve for x
    x = 6,583,232,073.61/72,124.26
  6. Step 6: Final answer
    x = 91,276.25

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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.