Home / 52,715.26-72,739.87-31,490.02

Finding the Fourth Proportional to 52,715.26, 72,739.87 and 31,490.02

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Solution

The fourth proportional to 52,715.26, 72,739.87 and 31,490.02 is: 43,451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,715.26 : 72,739.87 = 31,490.02 : x
  2. Step 2: Convert to fraction form
    52,715.26/72,739.87 = 31,490.02/x
  3. Step 3: Cross multiply
    52,715.26x = 72,739.87 × 31,490.02
  4. Step 4: Simplify right side
    52,715.26x = 2,290,579,439.95
  5. Step 5: Solve for x
    x = 2,290,579,439.95/52,715.26
  6. Step 6: Final answer
    x = 43,451.93

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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.