Home / 72,233.08-99,681.86-40,399.90

Finding the Fourth Proportional to 72,233.08, 99,681.86 and 40,399.90

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Solution

The fourth proportional to 72,233.08, 99,681.86 and 40,399.90 is: 55,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,233.08 : 99,681.86 = 40,399.90 : x
  2. Step 2: Convert to fraction form
    72,233.08/99,681.86 = 40,399.90/x
  3. Step 3: Cross multiply
    72,233.08x = 99,681.86 × 40,399.90
  4. Step 4: Simplify right side
    72,233.08x = 4,027,137,175.81
  5. Step 5: Solve for x
    x = 4,027,137,175.81/72,233.08
  6. Step 6: Final answer
    x = 55,751.98

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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.