Home / 51,608.20-77,412.30-28,280.20

Finding the Fourth Proportional to 51,608.20, 77,412.30 and 28,280.20

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Solution

The fourth proportional to 51,608.20, 77,412.30 and 28,280.20 is: 42,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.20 : 77,412.30 = 28,280.20 : x
  2. Step 2: Convert to fraction form
    51,608.20/77,412.30 = 28,280.20/x
  3. Step 3: Cross multiply
    51,608.20x = 77,412.30 × 28,280.20
  4. Step 4: Simplify right side
    51,608.20x = 2,189,235,326.46
  5. Step 5: Solve for x
    x = 2,189,235,326.46/51,608.20
  6. Step 6: Final answer
    x = 42,420.30

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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.