Home / 45,415.60-68,123.40-14,250.80

Finding the Fourth Proportional to 45,415.60, 68,123.40 and 14,250.80

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Solution

The fourth proportional to 45,415.60, 68,123.40 and 14,250.80 is: 21,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,415.60 : 68,123.40 = 14,250.80 : x
  2. Step 2: Convert to fraction form
    45,415.60/68,123.40 = 14,250.80/x
  3. Step 3: Cross multiply
    45,415.60x = 68,123.40 × 14,250.80
  4. Step 4: Simplify right side
    45,415.60x = 970,812,948.72
  5. Step 5: Solve for x
    x = 970,812,948.72/45,415.60
  6. Step 6: Final answer
    x = 21,376.20

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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.