Home / 86,651.10-129,950.73-45,075.42

Finding the Fourth Proportional to 86,651.10, 129,950.73 and 45,075.42

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Solution

The fourth proportional to 86,651.10, 129,950.73 and 45,075.42 is: 67,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,651.10 : 129,950.73 = 45,075.42 : x
  2. Step 2: Convert to fraction form
    86,651.10/129,950.73 = 45,075.42/x
  3. Step 3: Cross multiply
    86,651.10x = 129,950.73 × 45,075.42
  4. Step 4: Simplify right side
    86,651.10x = 5,857,583,734.06
  5. Step 5: Solve for x
    x = 5,857,583,734.06/86,651.10
  6. Step 6: Final answer
    x = 67,599.65

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1.5x scale

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.