Home / 45,428.32-68,143.08-14,263.57

Finding the Fourth Proportional to 45,428.32, 68,143.08 and 14,263.57

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Solution

The fourth proportional to 45,428.32, 68,143.08 and 14,263.57 is: 21,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.32 : 68,143.08 = 14,263.57 : x
  2. Step 2: Convert to fraction form
    45,428.32/68,143.08 = 14,263.57/x
  3. Step 3: Cross multiply
    45,428.32x = 68,143.08 × 14,263.57
  4. Step 4: Simplify right side
    45,428.32x = 971,963,591.60
  5. Step 5: Solve for x
    x = 971,963,591.60/45,428.32
  6. Step 6: Final answer
    x = 21,395.54

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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.