Home / 45,859.07-68,788.70-12,579.59

Finding the Fourth Proportional to 45,859.07, 68,788.70 and 12,579.59

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Solution

The fourth proportional to 45,859.07, 68,788.70 and 12,579.59 is: 18,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,859.07 : 68,788.70 = 12,579.59 : x
  2. Step 2: Convert to fraction form
    45,859.07/68,788.70 = 12,579.59/x
  3. Step 3: Cross multiply
    45,859.07x = 68,788.70 × 12,579.59
  4. Step 4: Simplify right side
    45,859.07x = 865,333,235.79
  5. Step 5: Solve for x
    x = 865,333,235.79/45,859.07
  6. Step 6: Final answer
    x = 18,869.40

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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.