Home / 72,214.06-99,655.59-40,382.96

Finding the Fourth Proportional to 72,214.06, 99,655.59 and 40,382.96

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Solution

The fourth proportional to 72,214.06, 99,655.59 and 40,382.96 is: 55,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.06 : 99,655.59 = 40,382.96 : x
  2. Step 2: Convert to fraction form
    72,214.06/99,655.59 = 40,382.96/x
  3. Step 3: Cross multiply
    72,214.06x = 99,655.59 × 40,382.96
  4. Step 4: Simplify right side
    72,214.06x = 4,024,387,244.33
  5. Step 5: Solve for x
    x = 4,024,387,244.33/72,214.06
  6. Step 6: Final answer
    x = 55,728.59

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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.