Home / 72,075.11-99,467.01-39,814.25

Finding the Fourth Proportional to 72,075.11, 99,467.01 and 39,814.25

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Solution

The fourth proportional to 72,075.11, 99,467.01 and 39,814.25 is: 54,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,075.11 : 99,467.01 = 39,814.25 : x
  2. Step 2: Convert to fraction form
    72,075.11/99,467.01 = 39,814.25/x
  3. Step 3: Cross multiply
    72,075.11x = 99,467.01 × 39,814.25
  4. Step 4: Simplify right side
    72,075.11x = 3,960,203,905.56
  5. Step 5: Solve for x
    x = 3,960,203,905.56/72,075.11
  6. Step 6: Final answer
    x = 54,945.52

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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.