Home / 66,318.86-99,485.40-28,372.07

Finding the Fourth Proportional to 66,318.86, 99,485.40 and 28,372.07

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Solution

The fourth proportional to 66,318.86, 99,485.40 and 28,372.07 is: 42,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,318.86 : 99,485.40 = 28,372.07 : x
  2. Step 2: Convert to fraction form
    66,318.86/99,485.40 = 28,372.07/x
  3. Step 3: Cross multiply
    66,318.86x = 99,485.40 × 28,372.07
  4. Step 4: Simplify right side
    66,318.86x = 2,822,606,732.78
  5. Step 5: Solve for x
    x = 2,822,606,732.78/66,318.86
  6. Step 6: Final answer
    x = 42,561.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.