Home / 52,021.46-77,999.40-28,664.30

Finding the Fourth Proportional to 52,021.46, 77,999.40 and 28,664.30

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Solution

The fourth proportional to 52,021.46, 77,999.40 and 28,664.30 is: 42,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.46 : 77,999.40 = 28,664.30 : x
  2. Step 2: Convert to fraction form
    52,021.46/77,999.40 = 28,664.30/x
  3. Step 3: Cross multiply
    52,021.46x = 77,999.40 × 28,664.30
  4. Step 4: Simplify right side
    52,021.46x = 2,235,798,201.42
  5. Step 5: Solve for x
    x = 2,235,798,201.42/52,021.46
  6. Step 6: Final answer
    x = 42,978.38

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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.