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Finding the Fourth Proportional to 66,520.80, 99,829.80 and 46,837.80

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Solution

The fourth proportional to 66,520.80, 99,829.80 and 46,837.80 is: 70,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.80 : 99,829.80 = 46,837.80 : x
  2. Step 2: Convert to fraction form
    66,520.80/99,829.80 = 46,837.80/x
  3. Step 3: Cross multiply
    66,520.80x = 99,829.80 × 46,837.80
  4. Step 4: Simplify right side
    66,520.80x = 4,675,808,206.44
  5. Step 5: Solve for x
    x = 4,675,808,206.44/66,520.80
  6. Step 6: Final answer
    x = 70,290.92

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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.