Home / 45,868.16-68,803.55-12,588.50

Finding the Fourth Proportional to 45,868.16, 68,803.55 and 12,588.50

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Solution

The fourth proportional to 45,868.16, 68,803.55 and 12,588.50 is: 18,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,868.16 : 68,803.55 = 12,588.50 : x
  2. Step 2: Convert to fraction form
    45,868.16/68,803.55 = 12,588.50/x
  3. Step 3: Cross multiply
    45,868.16x = 68,803.55 × 12,588.50
  4. Step 4: Simplify right side
    45,868.16x = 866,133,489.18
  5. Step 5: Solve for x
    x = 866,133,489.18/45,868.16
  6. Step 6: Final answer
    x = 18,883.11

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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.