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Finding the Fourth Proportional to 66,465.40, 99,479.40 and 51,593.80

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Solution

The fourth proportional to 66,465.40, 99,479.40 and 51,593.80 is: 77,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465.40 : 99,479.40 = 51,593.80 : x
  2. Step 2: Convert to fraction form
    66,465.40/99,479.40 = 51,593.80/x
  3. Step 3: Cross multiply
    66,465.40x = 99,479.40 × 51,593.80
  4. Step 4: Simplify right side
    66,465.40x = 5,132,520,267.72
  5. Step 5: Solve for x
    x = 5,132,520,267.72/66,465.40
  6. Step 6: Final answer
    x = 77,220.93

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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.