Home / 45,355.12-68,036.52-12,075.18

Finding the Fourth Proportional to 45,355.12, 68,036.52 and 12,075.18

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Solution

The fourth proportional to 45,355.12, 68,036.52 and 12,075.18 is: 18,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.12 : 68,036.52 = 12,075.18 : x
  2. Step 2: Convert to fraction form
    45,355.12/68,036.52 = 12,075.18/x
  3. Step 3: Cross multiply
    45,355.12x = 68,036.52 × 12,075.18
  4. Step 4: Simplify right side
    45,355.12x = 821,553,225.57
  5. Step 5: Solve for x
    x = 821,553,225.57/45,355.12
  6. Step 6: Final answer
    x = 18,113.79

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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.