Home / 72,131.14-99,539.13-40,300.24

Finding the Fourth Proportional to 72,131.14, 99,539.13 and 40,300.24

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Solution

The fourth proportional to 72,131.14, 99,539.13 and 40,300.24 is: 55,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,131.14 : 99,539.13 = 40,300.24 : x
  2. Step 2: Convert to fraction form
    72,131.14/99,539.13 = 40,300.24/x
  3. Step 3: Cross multiply
    72,131.14x = 99,539.13 × 40,300.24
  4. Step 4: Simplify right side
    72,131.14x = 4,011,450,828.39
  5. Step 5: Solve for x
    x = 4,011,450,828.39/72,131.14
  6. Step 6: Final answer
    x = 55,613.30

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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.