Home / 72,397.56-99,907.38-40,566.36

Finding the Fourth Proportional to 72,397.56, 99,907.38 and 40,566.36

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Solution

The fourth proportional to 72,397.56, 99,907.38 and 40,566.36 is: 55,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,397.56 : 99,907.38 = 40,566.36 : x
  2. Step 2: Convert to fraction form
    72,397.56/99,907.38 = 40,566.36/x
  3. Step 3: Cross multiply
    72,397.56x = 99,907.38 × 40,566.36
  4. Step 4: Simplify right side
    72,397.56x = 4,052,878,743.74
  5. Step 5: Solve for x
    x = 4,052,878,743.74/72,397.56
  6. Step 6: Final answer
    x = 55,980.87

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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.