Home / 51,621.76-77,454.42-28,220.86

Finding the Fourth Proportional to 51,621.76, 77,454.42 and 28,220.86

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Solution

The fourth proportional to 51,621.76, 77,454.42 and 28,220.86 is: 42,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,621.76 : 77,454.42 = 28,220.86 : x
  2. Step 2: Convert to fraction form
    51,621.76/77,454.42 = 28,220.86/x
  3. Step 3: Cross multiply
    51,621.76x = 77,454.42 × 28,220.86
  4. Step 4: Simplify right side
    51,621.76x = 2,185,830,343.20
  5. Step 5: Solve for x
    x = 2,185,830,343.20/51,621.76
  6. Step 6: Final answer
    x = 42,343.20

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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.