Home / 52,303.62-78,454.71-12,860.40

Finding the Fourth Proportional to 52,303.62, 78,454.71 and 12,860.40

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Solution

The fourth proportional to 52,303.62, 78,454.71 and 12,860.40 is: 19,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,303.62 : 78,454.71 = 12,860.40 : x
  2. Step 2: Convert to fraction form
    52,303.62/78,454.71 = 12,860.40/x
  3. Step 3: Cross multiply
    52,303.62x = 78,454.71 × 12,860.40
  4. Step 4: Simplify right side
    52,303.62x = 1,008,958,952.48
  5. Step 5: Solve for x
    x = 1,008,958,952.48/52,303.62
  6. Step 6: Final answer
    x = 19,290.42

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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.