Home / 72,092.12-99,486.42-40,260.20

Finding the Fourth Proportional to 72,092.12, 99,486.42 and 40,260.20

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Solution

The fourth proportional to 72,092.12, 99,486.42 and 40,260.20 is: 55,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.12 : 99,486.42 = 40,260.20 : x
  2. Step 2: Convert to fraction form
    72,092.12/99,486.42 = 40,260.20/x
  3. Step 3: Cross multiply
    72,092.12x = 99,486.42 × 40,260.20
  4. Step 4: Simplify right side
    72,092.12x = 4,005,343,166.48
  5. Step 5: Solve for x
    x = 4,005,343,166.48/72,092.12
  6. Step 6: Final answer
    x = 55,558.68

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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.