Home / 51,802.32-77,719.88-18,521.64

Finding the Fourth Proportional to 51,802.32, 77,719.88 and 18,521.64

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Solution

The fourth proportional to 51,802.32, 77,719.88 and 18,521.64 is: 27,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,802.32 : 77,719.88 = 18,521.64 : x
  2. Step 2: Convert to fraction form
    51,802.32/77,719.88 = 18,521.64/x
  3. Step 3: Cross multiply
    51,802.32x = 77,719.88 × 18,521.64
  4. Step 4: Simplify right side
    51,802.32x = 1,439,499,638.20
  5. Step 5: Solve for x
    x = 1,439,499,638.20/51,802.32
  6. Step 6: Final answer
    x = 27,788.32

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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.