Home / 72,008.98-99,371.53-39,743.84

Finding the Fourth Proportional to 72,008.98, 99,371.53 and 39,743.84

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Solution

The fourth proportional to 72,008.98, 99,371.53 and 39,743.84 is: 54,846.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,008.98 : 99,371.53 = 39,743.84 : x
  2. Step 2: Convert to fraction form
    72,008.98/99,371.53 = 39,743.84/x
  3. Step 3: Cross multiply
    72,008.98x = 99,371.53 × 39,743.84
  4. Step 4: Simplify right side
    72,008.98x = 3,949,406,188.88
  5. Step 5: Solve for x
    x = 3,949,406,188.88/72,008.98
  6. Step 6: Final answer
    x = 54,846.02

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1.5x scale

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.