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Finding the Fourth Proportional to 60,664.80, 91,094.40 and 45,890.40

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Solution

The fourth proportional to 60,664.80, 91,094.40 and 45,890.40 is: 68,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,664.80 : 91,094.40 = 45,890.40 : x
  2. Step 2: Convert to fraction form
    60,664.80/91,094.40 = 45,890.40/x
  3. Step 3: Cross multiply
    60,664.80x = 91,094.40 × 45,890.40
  4. Step 4: Simplify right side
    60,664.80x = 4,180,358,453.76
  5. Step 5: Solve for x
    x = 4,180,358,453.76/60,664.80
  6. Step 6: Final answer
    x = 68,909.13

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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.