Home / 45,416.90-68,117.25-13,819.31

Finding the Fourth Proportional to 45,416.90, 68,117.25 and 13,819.31

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Solution

The fourth proportional to 45,416.90, 68,117.25 and 13,819.31 is: 20,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,416.90 : 68,117.25 = 13,819.31 : x
  2. Step 2: Convert to fraction form
    45,416.90/68,117.25 = 13,819.31/x
  3. Step 3: Cross multiply
    45,416.90x = 68,117.25 × 13,819.31
  4. Step 4: Simplify right side
    45,416.90x = 941,333,360.77
  5. Step 5: Solve for x
    x = 941,333,360.77/45,416.90
  6. Step 6: Final answer
    x = 20,726.50

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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.