Home / 52,297.20-78,445.68-12,854.40

Finding the Fourth Proportional to 52,297.20, 78,445.68 and 12,854.40

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Solution

The fourth proportional to 52,297.20, 78,445.68 and 12,854.40 is: 19,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,297.20 : 78,445.68 = 12,854.40 : x
  2. Step 2: Convert to fraction form
    52,297.20/78,445.68 = 12,854.40/x
  3. Step 3: Cross multiply
    52,297.20x = 78,445.68 × 12,854.40
  4. Step 4: Simplify right side
    52,297.20x = 1,008,372,148.99
  5. Step 5: Solve for x
    x = 1,008,372,148.99/52,297.20
  6. Step 6: Final answer
    x = 19,281.57

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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.