Home / 52,217.79-78,328.21-12,774.89

Finding the Fourth Proportional to 52,217.79, 78,328.21 and 12,774.89

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Solution

The fourth proportional to 52,217.79, 78,328.21 and 12,774.89 is: 19,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,217.79 : 78,328.21 = 12,774.89 : x
  2. Step 2: Convert to fraction form
    52,217.79/78,328.21 = 12,774.89/x
  3. Step 3: Cross multiply
    52,217.79x = 78,328.21 × 12,774.89
  4. Step 4: Simplify right side
    52,217.79x = 1,000,634,430.53
  5. Step 5: Solve for x
    x = 1,000,634,430.53/52,217.79
  6. Step 6: Final answer
    x = 19,162.71

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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.