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Finding the Fourth Proportional to 68,450.40, 94,526.46 and 64,722.87

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Solution

The fourth proportional to 68,450.40, 94,526.46 and 64,722.87 is: 89,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,450.40 : 94,526.46 = 64,722.87 : x
  2. Step 2: Convert to fraction form
    68,450.40/94,526.46 = 64,722.87/x
  3. Step 3: Cross multiply
    68,450.40x = 94,526.46 × 64,722.87
  4. Step 4: Simplify right side
    68,450.40x = 6,118,023,782.14
  5. Step 5: Solve for x
    x = 6,118,023,782.14/68,450.40
  6. Step 6: Final answer
    x = 89,378.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.