Home / 51,643.20-77,464.80-48,727.20

Finding the Fourth Proportional to 51,643.20, 77,464.80 and 48,727.20

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Solution

The fourth proportional to 51,643.20, 77,464.80 and 48,727.20 is: 73,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,643.20 : 77,464.80 = 48,727.20 : x
  2. Step 2: Convert to fraction form
    51,643.20/77,464.80 = 48,727.20/x
  3. Step 3: Cross multiply
    51,643.20x = 77,464.80 × 48,727.20
  4. Step 4: Simplify right side
    51,643.20x = 3,774,642,802.56
  5. Step 5: Solve for x
    x = 3,774,642,802.56/51,643.20
  6. Step 6: Final answer
    x = 73,090.80

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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.