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Finding the Fourth Proportional to 55,000.61, 82,500.90 and 28,699.20

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Solution

The fourth proportional to 55,000.61, 82,500.90 and 28,699.20 is: 43,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,000.61 : 82,500.90 = 28,699.20 : x
  2. Step 2: Convert to fraction form
    55,000.61/82,500.90 = 28,699.20/x
  3. Step 3: Cross multiply
    55,000.61x = 82,500.90 × 28,699.20
  4. Step 4: Simplify right side
    55,000.61x = 2,367,709,829.28
  5. Step 5: Solve for x
    x = 2,367,709,829.28/55,000.61
  6. Step 6: Final answer
    x = 43,048.80

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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.