Home / 72,336.51-99,822.06-40,069.80

Finding the Fourth Proportional to 72,336.51, 99,822.06 and 40,069.80

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Solution

The fourth proportional to 72,336.51, 99,822.06 and 40,069.80 is: 55,295.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.51 : 99,822.06 = 40,069.80 : x
  2. Step 2: Convert to fraction form
    72,336.51/99,822.06 = 40,069.80/x
  3. Step 3: Cross multiply
    72,336.51x = 99,822.06 × 40,069.80
  4. Step 4: Simplify right side
    72,336.51x = 3,999,849,979.79
  5. Step 5: Solve for x
    x = 3,999,849,979.79/72,336.51
  6. Step 6: Final answer
    x = 55,295.04

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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.